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- History (1 revision)
- Chapter 6 (1 revision)
- Oenothera hartwegii subsp. fendleri (1 revision)
- Scope (1 revision)
- Chapter 7 (1 revision)
- Laurie Klingensmith (1 revision)
- Content (1 revision)
- Chapter 8 (1 revision)
- Treatment Authors (1 revision)
- Volume 10 (1 revision)
- Taxonomic Hierarchy (1 revision)
- Chapter 9 (1 revision)
- PrivacyPolicy (1 revision)
- Alphabetical List Bryophytes (1 revision)
- Fabaceae subfam. Detarioideae (1 revision)
- Chapter 10 (1 revision)
- Tumamoca (1 revision)
- Fabaceae subfam. Caesalpinioideae (1 revision)
- Chapter 11 (1 revision)
- Ericaceae subfam. Ericoideae (1 revision)
- Fabaceae subfam. Faboideae (1 revision)
- Chapter 12 (1 revision)
- Potentilla sect. Lupinoides (1 revision)
- Future Publication Schedule Summary (1 revision)
- Key to Families of Gymnosperms (1 revision)
- Fabaceae subfam. Cercidoideae (1 revision)
- Chapter 13 (1 revision)
- Tetrachondraceae Illustrations (1 revision)
- Future Publication Schedule Details (1 revision)
- Key to Pteridophyte Families (1 revision)
- Chapter 14 (1 revision)
- Volume 24 (1 revision)
- Nyssaceae Illustrations (1 revision)
- Chapter 15 (1 revision)
- Volume 25 (1 revision)
- Test3 (1 revision)
- Elatinaceae Illustrations (1 revision)
- PACCAD Grasses (1 revision)
- Literature Cited (Vol 1) (1 revision)
- Volume 26 (1 revision)
- Volume 22 (1 revision)
- Future Volumes (1 revision)
- Chapter 1 (1 revision)
- Volume 2 (1 revision)
- Chapter 2 (1 revision)
- Volume 3 (1 revision)
- Science Outreach (1 revision)
- Chapter 3 (1 revision)
- Lesson Plans (1 revision)
- Chapter 4 (1 revision)
- Facts Sheets (1 revision)
- Oenothera hartwegii subsp. maccartii (1 revision)
- Lathyrus japonicus var. japonicus (2 revisions)
- Dichondra micrantha (2 revisions)
- Onobrychis viciifolia (2 revisions)
- Astragalus beckwithii var. purpureus (2 revisions)
- Lupinus westianus (2 revisions)
- Bauhinia lunarioides (2 revisions)
- Thermopsis (2 revisions)
- Eucalyptus robusta (2 revisions)
- Astragalus cobrensis var. maguirei (2 revisions)
- Acmispon strigosus var. strigosus (2 revisions)
- Lespedeza violacea (2 revisions)
- Stylosanthes hamata (2 revisions)
- Lycium pallidum (2 revisions)
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- Frasera umpquaensis (2 revisions)
- Lathyrus lanszwertii var. pallescens (2 revisions)
- Stylisma villosa (2 revisions)
- Trifolium striatum (2 revisions)
- Dichrostachys cinerea (2 revisions)
- Genista linifolia (2 revisions)
- Astragalus accidens var. hendersonii (2 revisions)
- Thermopsis robusta (2 revisions)
- Calyptranthes zuzygium (2 revisions)
- Ammannia (2 revisions)
- Astragalus subcinereus var. basalticus (2 revisions)
- Acmispon mearnsii var. equisolensis (2 revisions)
- Desmodium laevigatum (2 revisions)
- Aeschynomene villosa (2 revisions)
- Oenothera deltoides subsp. piperi (2 revisions)
- Amsonia palmeri (2 revisions)
- Asclepias lemmonii (2 revisions)
- Frasera albicaulis var. modocensis (2 revisions)
- Lathyrus vestitus var. vestitus (2 revisions)
- Turbina corymbosa (2 revisions)
- Acacia (2 revisions)
- Astragalus douglasii var. douglasii (2 revisions)
- Amorpha georgiana (2 revisions)
- Astragalus obscurus (2 revisions)
- Baptisia tinctoria (2 revisions)
- Psidium (2 revisions)
- Decodon verticillatus (2 revisions)
- Astragalus miser var. miser (2 revisions)
- Acmispon rubriflorus (2 revisions)
- Desmodium procumbens var. procumbens (2 revisions)
- Indigofera spicata (2 revisions)
- Nicotiana rustica (2 revisions)
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- Obolaria (2 revisions)
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- Epilobium smithii (2 revisions)
- Astragalus diversifolius (2 revisions)
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- Wisteria frutescens (2 revisions)
- Oenothera cespitosa subsp. marginata (2 revisions)
- Physalis cinerascens (2 revisions)
- Asclepias macrosperma (2 revisions)
- Gentianella quinquefolia subsp. quinquefolia (2 revisions)
- Apocynum (2 revisions)
- Trifolium depauperatum var. truncatum (2 revisions)
- Astragalus geyeri (2 revisions)
- Psorothamnus arborescens var. minutifolius (2 revisions)
- Astragalus preussii (2 revisions)
- Crotalaria pallida var. obovata (2 revisions)
- Oenothera sect. Megapterium (2 revisions)
- Clarkia sect. Eucharidium (2 revisions)
- Astragalus ripleyi (2 revisions)
- Hoffmannseggia (2 revisions)
- Orbexilum stipulatum (2 revisions)
- Tephrosia virginiana (2 revisions)
- Oenothera subsect. Munzia (2 revisions)
- Physalis longifolia var. longifolia (2 revisions)
- Asclepias hirtella (2 revisions)
- Gentianopsis detonsa subsp. yukonensis (2 revisions)
- Calystegia macrostegia subsp. tenuifolia (2 revisions)
- Trifolium amoenum (2 revisions)
- Astragalus lentiginosus var. multiracemosus (2 revisions)
- Marina (2 revisions)
- Astragalus striatiflorus (2 revisions)
- Astragalus pattersonii (2 revisions)
- Lupinus concinnus (2 revisions)
- Camissonia campestris subsp. obispoensis (2 revisions)
- Clarkia amoena subsp. whitneyi (2 revisions)
- Astragalus applegatei (2 revisions)
- Hosackia oblongifolia var. cuprea (2 revisions)
- Ladeania lanceolata (2 revisions)
- Senna roemeriana (2 revisions)
- Myriophyllum quitense (2 revisions)
- Physalis walteri (2 revisions)
- Asclepias speciosa (2 revisions)
- Gentiana newberryi var. newberryi (2 revisions)
- Calystegia sepium subsp. americana (2 revisions)
- Trifolium andersonii subsp. monoense (2 revisions)
- Astragalus lentiginosus var. pohlii (2 revisions)
- Senna hebecarpa (2 revisions)
- Mimosa malacophylla (2 revisions)
- Astragalus sect. Onobrychoidei (2 revisions)
- Lupinus odoratus (2 revisions)
- Eremothera boothii subsp. alyssoides (2 revisions)
- Clarkia borealis subsp. borealis (2 revisions)
- Astragalus sclerocarpus (2 revisions)
- Robinia hispida (2 revisions)
- Galactia brachypoda (2 revisions)
- Suriana maritima (2 revisions)
- Solanum carolinense (2 revisions)
- Gonolobus arizonicus (2 revisions)
- Trachelospermum jasminoides (2 revisions)
- Volume 7 (2 revisions)
- Merremia (2 revisions)
- Trifolium plumosum subsp. plumosum (2 revisions)
- Astragalus lentiginosus var. fremontii (2 revisions)
- Dalea ornata (2 revisions)
- Astragalus albens (2 revisions)
- Desmanthus bicornutus (2 revisions)
- Lupinus adsurgens (2 revisions)
- Camissoniopsis lewisii (2 revisions)
- Clarkia speciosa subsp. immaculata (2 revisions)
- Astragalus whitneyi var. lenophyllus (2 revisions)
- Genistidium dumosum (2 revisions)
- Clitoria (2 revisions)
- Onagraceae subfam. Ludwigioideae (2 revisions)
- Solanum elaeagnifolium (2 revisions)
- Amsonia subg. Articularia (2 revisions)
- Voyria (2 revisions)
- Ipomoea cristulata (2 revisions)
- Trifolium barnebyi (2 revisions)
- Astragalus iodanthus var. diaphanoides (2 revisions)
- Astragalus pauperculus (2 revisions)
- Astragalus cyaneus (2 revisions)
- Lupinus apertus (2 revisions)
- Tetrapteron graciliflorum (2 revisions)
- Clarkia jolonensis (2 revisions)
- Astragalus kentrophyta (2 revisions)
- Oxytropis kokrinensis (2 revisions)
- Mucuna (2 revisions)
- Ludwigia grandiflora (2 revisions)
- Solanum nigrescens (2 revisions)
- Metastelma (2 revisions)
- Asclepias (2 revisions)
- Ipomoea purpurea (2 revisions)
- Trifolium longipes subsp. neurophyllum (2 revisions)
- Astragalus nuttallianus var. imperfectus (2 revisions)
- Astragalus musiniensis (2 revisions)
- Lupinus argenteus var. palmeri (2 revisions)
- Lathyrus odoratus (2 revisions)
- Chylismia multijuga (2 revisions)
- Clarkia subsect. Micranthae (2 revisions)
- Bauhinia aculeata subsp. aculeata (2 revisions)
- Oxytropis lagopus var. conjugans (2 revisions)
- Rhynchosia tomentosa (2 revisions)
- Ludwigia glandulosa (2 revisions)
- Solanum tenuipes (2 revisions)
- Polystemma cordifolium (2 revisions)
- Ipomoea ternifolia (2 revisions)
- Melilotus indicus (2 revisions)
- Astragalus vaccarum (2 revisions)
- Astragalus anserinus (2 revisions)
- Lupinus diffusus (2 revisions)
- Astragalus albulus (2 revisions)
- Vachellia tortuosa (2 revisions)
- Chylismia claviformis subsp. peirsonii (2 revisions)
- Astragalus humistratus var. crispulus (2 revisions)
- Oxytropis campestris (2 revisions)
- Pachyrhizus (2 revisions)
- Ludwigia repens (2 revisions)
- Rauvolfia (2 revisions)
- Spigelia marilandica (2 revisions)
- Ipomoea amnicola (2 revisions)
- Acacia retinodes (2 revisions)
- Cuscuta gronovii (2 revisions)
- Astragalus sect. Reflexi (2 revisions)
- Astragalus amphioxys var. vespertinus (2 revisions)
- Lupinus latifolius (2 revisions)
- Astragalus nelsonianus (2 revisions)
- Zapoteca (2 revisions)
- Gayophytum diffusum subsp. parviflorum (2 revisions)
- Oxytropis sericea (2 revisions)
- Vigna luteola (2 revisions)
- Senna lindheimeriana (2 revisions)
- Chamaenerion latifolium (2 revisions)
- Atropa (2 revisions)
- Schenkia spicata (2 revisions)
- Medicago sect. Buceras (2 revisions)
- Cuscuta mitriformis (2 revisions)
- Astragalus sect. Glycyphyllus (2 revisions)
- Astragalus equisolensis (2 revisions)
- Lupinus lepidus var. ramosus (2 revisions)
- Astragalus paysonii (2 revisions)
- Havardia pallens (2 revisions)
- Conocarpus erectus (2 revisions)
- Monnina wrightii (2 revisions)
- Oxytropis arctica var. murrayi (2 revisions)
- Pediomelum megalanthum (2 revisions)
- Phaseolus acutifolius (2 revisions)
- Dalea frutescens (2 revisions)
- Oenothera hartwegii (2 revisions)
- Genera Included (2 revisions)
- Cestrum (2 revisions)
- Rhodomyrtus tomentosa var. tomentosa (2 revisions)
- Mandevilla hypoleuca (2 revisions)
- Vicia villosa var. glabrescens (2 revisions)
- Cuscuta salina (2 revisions)
- Astragalus hyalinus var. glabratus (2 revisions)
- Astragalus mollissimus var. matthewsii (2 revisions)
- Lupinus nootkatensis (2 revisions)
- Astragalus johannis-howellii (2 revisions)
- Enterolobium contortisiliquum (2 revisions)
- Rhexia parviflora (2 revisions)
- Polygala hookeri (2 revisions)
- Parkinsonia aculeata (2 revisions)
- Pediomelum latestipulatum (2 revisions)
- Strophostyles leiosperma (2 revisions)
- Dalea pogonathera (2 revisions)
- Epilobium canum subsp. latifolium (2 revisions)
- Crataegus (sect. Coccineae) ser. Molles (2 revisions)
- Datura discolor (2 revisions)
- Oenothera subsect. Stipogaura (2 revisions)
- Sabatia brevifolia (2 revisions)
- Vicia sepium (2 revisions)
- Evolvulus (2 revisions)
- Halimodendron (2 revisions)
- Astragalus gypsodes (2 revisions)
- Lupinus polyphyllus var. prunophilus (2 revisions)
- Astragalus heilii (2 revisions)
- Sophora (2 revisions)
- Melastoma malabathricum (2 revisions)
- Astragalus australis var. muriei (2 revisions)
- Securigera (2 revisions)
- Lespedeza capitata (2 revisions)
- Andira inermis (2 revisions)
- Epilobium parviflorum (2 revisions)
- Jaborosa integrifolia (2 revisions)
- Eustoma exaltatum subsp. russellianum (2 revisions)
- Mandevilla foliosa (2 revisions)
- Lathyrus japonicus var. maritimus (2 revisions)
- Dichondra donelliana (2 revisions)
- Cicer (2 revisions)
- Astragalus beckwithii var. weiserensis (2 revisions)
- Lupinus westianus var. westianus (2 revisions)
- Neptunia plena (2 revisions)
- Thermopsis californica (2 revisions)
- Oenothera fruticosa subsp. tetragona (2 revisions)
- Parkinsonia texana (2 revisions)
- Acmispon strigosus var. hirtellus (2 revisions)
- Lespedeza virginica (2 revisions)
- Stylosanthes biflora (2 revisions)
- Oenothera nuttallii (2 revisions)
- Lycium pallidum var. pallidum (2 revisions)
- Amsonia ciliata var. filifolia (2 revisions)
- Frasera speciosa (2 revisions)
- Lathyrus lanszwertii var. bijugatus (2 revisions)
- Stylisma pickeringii (2 revisions)
- Trifolium alexandrinum (2 revisions)
- Astragalus pomonensis (2 revisions)
- Genista maderensis (2 revisions)
- Astragalus sect. Reventi-arrecti (2 revisions)
- Thermopsis villosa (2 revisions)
- Eugenia (2 revisions)
- Ammannia auriculata (2 revisions)
- Astragalus wingatanus (2 revisions)
- Acmispon grandiflorus (2 revisions)
- Desmodium lindheimeri (2 revisions)
- Aeschynomene villosa var. villosa (2 revisions)
- Oenothera pallida (2 revisions)
- Nectouxia (2 revisions)
- Asclepias nummularia (2 revisions)
- Frasera albicaulis var. cusickii (2 revisions)
- Lathyrus vestitus var. ochropetalus (2 revisions)
- Jacquemontia (2 revisions)
- Trifolium nigrescens (2 revisions)
- Astragalus douglasii var. parishii (2 revisions)
- Amorpha nana (2 revisions)
- Astragalus sect. Michauxiani (2 revisions)
- Baptisia nuttalliana (2 revisions)
- Didiplis (2 revisions)
- Astragalus miser var. oblongifolius (2 revisions)
- Acmispon prostratus (2 revisions)
- Desmodium procumbens var. neomexicanum (2 revisions)
- Indigofera pilosa (2 revisions)
- Oenothera villosa (2 revisions)
- Nicotiana sylvestris (2 revisions)
- Asclepias prostrata (2 revisions)
- Obolaria virginica (2 revisions)
- Lathyrus holochlorus (2 revisions)
- Calystegia stebbinsii (2 revisions)
- Trifolium piorkowskii (2 revisions)
- Mimosa borealis (2 revisions)
- Errazurizia (2 revisions)
- Astragalus sect. Hesperonix (2 revisions)
- Crotalaria purshii (2 revisions)
- Lythrum lineare (2 revisions)
- Epilobium mirabile (2 revisions)
- Astragalus sect. Lonchocarpi (2 revisions)
- Acmispon junceus var. junceus (2 revisions)
- Desmodium ×humifusum (2 revisions)
- Wisteria sinensis (2 revisions)
- Oenothera cordata (2 revisions)
- Carissa (2 revisions)
- Asclepias welshii (2 revisions)
- Gentianella quinquefolia subsp. occidentalis (2 revisions)
- Calystegia collina subsp. venusta (2 revisions)
- Acacia cultriformis (2 revisions)
- Astragalus geyeri var. geyeri (2 revisions)
- Psorothamnus arborescens var. californicus (2 revisions)
- Astragalus preussii var. preussii (2 revisions)
- Crotalaria incana (2 revisions)
- Clarkia concinna (2 revisions)
- Astragalus schmolliae (2 revisions)
- Acmispon argophyllus var. niveus (2 revisions)
- Orbexilum onobrychis (2 revisions)
- Tephrosia mohrii (2 revisions)
- Oenothera (sect. Oenothera) ser. Allochroa (2 revisions)
- Physalis longifolia var. subglabrata (2 revisions)
- Asclepias longifolia (2 revisions)
- Gentianopsis detonsa subsp. raupii (2 revisions)
- Calystegia soldanella (2 revisions)
- Trifolium dichotomum (2 revisions)
- Astragalus lentiginosus var. salinus (2 revisions)
- Marina parryi (2 revisions)
- Astragalus sect. Platytropia (2 revisions)
- Astragalus sabulosus (2 revisions)
- Chamaecrista lineata (2 revisions)
- Camissonia sierrae (2 revisions)
- Clarkia rubicunda (2 revisions)
- Astragalus sect. Camptopodes (2 revisions)
- Hosackia yollabolliensis (2 revisions)
- Pediomelum (2 revisions)
- Canavalia brasiliensis (2 revisions)
- Oenothera harringtonii (2 revisions)
- Quincula (2 revisions)
- Asclepias syriaca (2 revisions)
- Gentiana newberryi var. tiogana (2 revisions)
- Apocynum ×floribundum (2 revisions)
- Trifolium friscanum (2 revisions)
- Astragalus lentiginosus var. toyabensis (2 revisions)
- Dalea albiflora (2 revisions)
- Astragalus panamintensis (2 revisions)
- Astragalus laxmannii (2 revisions)
- Lupinus pachylobus (2 revisions)
- Oenothera coryi (2 revisions)
- Clarkia borealis subsp. arida (2 revisions)
- Astragalus sinuatus (2 revisions)
- Hoffmannseggia oxycarpa (2 revisions)
- Galactia minor (2 revisions)
- Solanum carolinense var. carolinense (2 revisions)
- Gonolobus suberosus (2 revisions)
- Gentiana clausa (2 revisions)
- Volume 8 (2 revisions)
- Merremia umbellata (2 revisions)
- Trifolium plumosum subsp. amplifolium (2 revisions)
- Astragalus lentiginosus var. kennedyi (2 revisions)
- Dalea flavescens (2 revisions)
- Astragalus mohavensis (2 revisions)
- Astragalus uncialis (2 revisions)
- Lupinus albicaulis (2 revisions)
- Camissoniopsis guadalupensis (2 revisions)
- Clarkia speciosa subsp. nitens (2 revisions)
- Astragalus whitneyi var. siskiyouensis (2 revisions)
- Sphinctospermum (2 revisions)
- Clitoria fragrans (2 revisions)
- Solanum emulans (2 revisions)
- Matelea atrostellata (2 revisions)
- Voyria parasitica (2 revisions)
- Ipomoea tenuiloba (2 revisions)
- Trifolium beckwithii (2 revisions)
- Astragalus pseudiodanthus (2 revisions)
- Mimosa nuttallii (2 revisions)
- Astragalus columbianus (2 revisions)
- Lupinus arboreus (2 revisions)
- Tetrapteron palmeri (2 revisions)
- Clarkia xantiana (2 revisions)
- Astragalus kentrophyta var. kentrophyta (2 revisions)
- Oxytropis nigrescens (2 revisions)
- Mucuna pruriens (2 revisions)
- Ludwigia peploides (2 revisions)
- Solanum nigrum (2 revisions)
- Metastelma arizonicum (2 revisions)
- Asclepias macrotis (2 revisions)
- Ipomoea hederacea (2 revisions)
- Trifolium longipes subsp. multipedunculatum (2 revisions)
- Astragalus nuttallianus var. cedrosensis (2 revisions)
- Desmanthus covillei (2 revisions)
- Lupinus argenteus var. parviflorus (2 revisions)
- Lathyrus hirsutus (2 revisions)
- Chylismia specicola (2 revisions)
- Clarkia epilobioides (2 revisions)
- Prosopis laevigata (2 revisions)
- Oxytropis lagopus var. atropurpurea (2 revisions)
- Rhynchosia tomentosa var. tomentosa (2 revisions)
- Ludwigia glandulosa subsp. glandulosa (2 revisions)
- Solanum tenuipes var. tenuipes (2 revisions)
- Amsonia tomentosa var. tomentosa (2 revisions)
- Ipomoea ternifolia var. villosa (2 revisions)
- Melilotus officinalis (2 revisions)
- Astragalus clevelandii (2 revisions)
- Astragalus leucolobus (2 revisions)
- Lupinus duranii (2 revisions)
- Astragalus sect. Bisulcati (2 revisions)
- Vachellia vernicosa (2 revisions)
- Chylismia claviformis subsp. rubescens (2 revisions)
- Clarkia tembloriensis subsp. tembloriensis (2 revisions)
- Astragalus sesquiflorus (2 revisions)
- Oxytropis campestris var. varians (2 revisions)
- Pachyrhizus erosus (2 revisions)
- Ludwigia curtissii (2 revisions)
- Cuscuta epithymum var. epithymum (2 revisions)
- Spigelia gentianoides (2 revisions)
- Ipomoea cordatotriloba (2 revisions)
- Medicago sect. Lupularia (2 revisions)
- Cuscuta gronovii var. gronovii (2 revisions)
- Astragalus reflexus (2 revisions)
- Astragalus cymboides (2 revisions)
- Lupinus latifolius var. latifolius (2 revisions)
- Astragalus grayi (2 revisions)
- Zapoteca media (2 revisions)
- Chylismia sect. Lignothera (2 revisions)
- Chylismiella (2 revisions)
- Oxytropis sericea var. sericea (2 revisions)
- Vigna unguiculata (2 revisions)
- Dalea compacta var. compacta (2 revisions)
- Chamaenerion angustifolium (2 revisions)
- Atropa belladonna (2 revisions)
- Zeltnera (2 revisions)
- Medicago monspeliaca (2 revisions)
- Tabernaemontana divaricata (2 revisions)
- Astragalus glycyphyllos (2 revisions)
- Astragalus naturitensis (2 revisions)
- Lupinus lepidus var. sellulus (2 revisions)
- Astragalus straturensis (2 revisions)
- Ebenopsis (2 revisions)
- Oenothera sect. Hartmannia (2 revisions)
- Oxytropis splendens (2 revisions)
- Erythrostemon caudatus (2 revisions)
- Phaseolus acutifolius var. acutifolius (2 revisions)
- Dalea greggii (2 revisions)
- Epilobium nivium (2 revisions)
- Cestrum diurnum (2 revisions)
- Syzygium (2 revisions)
- Zeltnera nudicaulis (2 revisions)
- Vachellia (2 revisions)
- Cuscuta squamata (2 revisions)
- Astragalus tibetanus (2 revisions)
- Astragalus mollissimus var. thompsoniae (2 revisions)
- Lupinus nootkatensis var. nootkatensis (2 revisions)
- Astragalus peckii (2 revisions)
- Lysiloma (2 revisions)
- Rhexia aristosa (2 revisions)
- Polygala incarnata (2 revisions)
- Astragalus molybdenus var. shultziorum (2 revisions)
- Pediomelum latestipulatum var. latestipulatum (2 revisions)
- Strophostyles helvola (2 revisions)
- Senna mexicana var. chapmanii (2 revisions)
- Epilobium canum subsp. garrettii (2 revisions)
- Linda A. Vorobik (2 revisions)
- Datura ferox (2 revisions)
- Oenothera mckelveyae (2 revisions)
- Sabatia grandiflora (2 revisions)
- Vicia sativa (2 revisions)
- Evolvulus convolvuloides (2 revisions)
- Halimodendron halodendron (2 revisions)
- Astragalus plattensis (2 revisions)
- Senna (2 revisions)
- Astragalus sect. Inyoenses (2 revisions)
- Sophora stenophylla (2 revisions)
- Polygala verticillata (2 revisions)
- Astragalus australis var. lepagei (2 revisions)
- Securigera varia (2 revisions)
- Caesalpinia (2 revisions)
- Andira inermis subsp. inermis (2 revisions)
- Oenothera hartwegii subsp. filifolia (2 revisions)
- Jaltomata (2 revisions)
- Jaltomata procumbens (2 revisions)
- Cicendia (2 revisions)
- Lathyrus japonicus var. pellitus (2 revisions)
- Dichondra recurvata (2 revisions)
- Cicer arietinum (2 revisions)
- Astragalus beckwithii var. sulcatus (2 revisions)
- Lupinus westianus var. aridorum (2 revisions)
- Astragalus minthorniae (2 revisions)
- Thermopsis californica var. californica (2 revisions)
- Eucalyptus sideroxylon (2 revisions)
- Rhinotropis lindheimeri var. lindheimeri (2 revisions)
- Astragalus sect. Tiopsidei (2 revisions)
- Acmispon strigosus var. tomentellus (2 revisions)
- Desmodium (2 revisions)
- Stylosanthes viscosa (2 revisions)
- Oenothera engelmannii (2 revisions)
- Lycium pallidum var. oligospermum (2 revisions)
- Asclepias subverticillata (2 revisions)
- Frasera caroliniensis (2 revisions)
- Lathyrus lanszwertii var. aridus (2 revisions)
- Stylisma pickeringii var. pickeringii (2 revisions)
- Trifolium angustifolium (2 revisions)
- Astragalus curtipes (2 revisions)
- Senna artemisioides (2 revisions)
- Astragalus reventus (2 revisions)
- Baptisia (2 revisions)
- Eugenia axillaris (2 revisions)
- Ammannia coccinea (2 revisions)
- Astragalus cliffordii (2 revisions)
- Acmispon grandiflorus var. grandiflorus (2 revisions)
- Denisophytum pauciflorum (2 revisions)
- Aeschynomene pratensis (2 revisions)
- Oenothera pallida subsp. pallida (2 revisions)
- Nectouxia formosa (2 revisions)
- Asclepias quinquedentata (2 revisions)
- Amsonia subg. Amsonia (2 revisions)
- Lathyrus vestitus var. alefeldii (2 revisions)
- Jacquemontia reclinata (2 revisions)
- Trifolium breweri (2 revisions)
- Astragalus douglasii var. perstrictus (2 revisions)
- Amorpha confusa (2 revisions)
- Neptunia microcarpa (2 revisions)
- Baptisia lanceolata (2 revisions)
- Didiplis diandra (2 revisions)
- Bauhinia aculeata (2 revisions)
- Acmispon micranthus (2 revisions)
- Desmodium psilocarpum (2 revisions)
- Indigofera hirsuta (2 revisions)
- Oenothera villosa subsp. villosa (2 revisions)
- Nicotiana tabacum (2 revisions)
- Amsonia ludoviciana (2 revisions)
- Comastoma (2 revisions)
- Lathyrus tracyi (2 revisions)
- Calystegia vanzuukiae (2 revisions)
- Trifolium cyathiferum (2 revisions)
- Astragalus endopterus (2 revisions)
- Errazurizia rotundata (2 revisions)
- Astragalus bolanderi (2 revisions)
- Crotalaria rotundifolia (2 revisions)
- Epilobium leptocarpum (2 revisions)
- Astragalus titanophilus (2 revisions)
- Acmispon junceus var. biolettii (2 revisions)
- Hylodesmum (2 revisions)
- Wisteria floribunda (2 revisions)
- Oenothera rhombipetala (2 revisions)
- Physalis cinerascens var. cinerascens (2 revisions)
- Asclepias labriformis (2 revisions)
- Gentianella aurea (2 revisions)
- Calystegia collina subsp. oxyphylla (2 revisions)
- Trifolium hydrophilum (2 revisions)
- Astragalus geyeri var. triquetrus (2 revisions)
- Psorothamnus arborescens var. pubescens (2 revisions)
- Astragalus preussii var. laxiflorus (2 revisions)
- Crotalaria incana var. incana (2 revisions)
- Taraxia ovata (2 revisions)
- Clarkia concinna subsp. concinna (2 revisions)
- Astragalus tortipes (2 revisions)
- Hosackia (2 revisions)
- Orbexilum psoralioides (2 revisions)
- Tephrosia rugelii (2 revisions)
- Oenothera stricta (2 revisions)
- Physalis longifolia var. texana (2 revisions)
- Asclepias lanceolata (2 revisions)
- Gentianopsis detonsa subsp. nesophila (2 revisions)
- Calystegia hederacea (2 revisions)
- Trifolium columbinum (2 revisions)
- Mimosa dysocarpa (2 revisions)
- Marina calycosa (2 revisions)
- Astragalus platytropis (2 revisions)
- Astragalus sabulosus var. sabulosus (2 revisions)
- Lupinus flavoculatus (2 revisions)
- Camissonia sierrae subsp. sierrae (2 revisions)
- Oenothera toumeyi (2 revisions)
- Astragalus camptopus (2 revisions)
- Hosackia alamosana (2 revisions)
- Pediomelum rhombifolium (2 revisions)
- Canavalia ensiformis (2 revisions)
- Myriophyllum spicatum (2 revisions)
- Alstonia (2 revisions)
- Cynanchum (2 revisions)
- Gentiana setigera (2 revisions)
- Calystegia sepium subsp. appalachiana (2 revisions)
- Acacia decurrens (2 revisions)
- Astragalus lentiginosus var. latus (2 revisions)
- Dalea lumholtzii (2 revisions)
- Astragalus sect. Humillimi (2 revisions)
- Astragalus laxmannii var. robustior (2 revisions)
- Lupinus pusillus (2 revisions)
- Eremothera boothii subsp. condensata (2 revisions)
- Clarkia mildrediae (2 revisions)
- Astragalus speirocarpus (2 revisions)
- Robinia neomexicana (2 revisions)
- Galactia texana (2 revisions)
- Solanum carolinense var. floridanum (2 revisions)
- Gonolobus suberosus var. suberosus (2 revisions)
- Gentiana latidens (2 revisions)
- Volume 9 (2 revisions)
- Merremia dissecta (2 revisions)
- Trifolium eriocephalum (2 revisions)
- Astragalus lentiginosus var. variabilis (2 revisions)
- Dalea searlsiae (2 revisions)
- Astragalus mohavensis var. mohavensis (2 revisions)
- Astragalus zionis (2 revisions)
- Chamaecrista nictitans var. nictitans (2 revisions)
- Camissoniopsis guadalupensis subsp. clementiana (2 revisions)
- Clarkia speciosa subsp. polyantha (2 revisions)
- Astragalus whitneyi var. sonneanus (2 revisions)
- Sphinctospermum constrictum (2 revisions)
- Senna wislizeni var. wislizeni (2 revisions)
- Ludwigia sect. Myrtocarpus (2 revisions)
- Solanum erianthum (2 revisions)
- Matelea parvifolia (2 revisions)
- Hydroleaceae (2 revisions)
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- Astragalus rattanii (2 revisions)
- Astragalus tidestromii (2 revisions)
- Lupinus arbustus (2 revisions)
- Neoholmgrenia (2 revisions)
- Clarkia xantiana subsp. xantiana (2 revisions)
- Astragalus kentrophyta var. tegetarius (2 revisions)
- Hoffmannseggia repens (2 revisions)
- Mucuna sloanei (2 revisions)
- Ludwigia peploides subsp. peploides (2 revisions)
- Solanum nitidibaccatum (2 revisions)
- Metastelma bahamense (2 revisions)
- Asclepias sperryi (2 revisions)
- Ipomoea nil (2 revisions)
- Trifolium kingii (2 revisions)
- Astragalus nuttallianus var. zapatanus (2 revisions)
- Astragalus concordius (2 revisions)
- Lupinus argenteus var. rubricaulis (2 revisions)
- Lathyrus cicera (2 revisions)
- Chylismia specicola subsp. specicola (2 revisions)
- Clarkia subsect. Connubium (2 revisions)
- Astragalus sect. Jejuni (2 revisions)
- Oxytropis besseyi (2 revisions)
- Rhynchosia tomentosa var. mollissima (2 revisions)
- Solanum tenuipes var. latisectum (2 revisions)
- Vincetoxicum (2 revisions)
- Ipomoea wrightii (2 revisions)
- Melilotus sulcatus (2 revisions)
- Cuscuta campestris (2 revisions)
- Astragalus sect. Chaetodontes (2 revisions)
- Astragalus subvestitus (2 revisions)
- Lupinus elatus (2 revisions)
- Astragalus bisulcatus (2 revisions)
- Senegalia (2 revisions)
- Chylismia claviformis subsp. yumae (2 revisions)
- Clarkia tembloriensis subsp. calientensis (2 revisions)
- Astragalus chuskanus (2 revisions)
- Oxytropis campestris var. jordalii (2 revisions)
- Pueraria (2 revisions)
- Onagraceae subfam. Onagroideae (2 revisions)
- Cuscuta epilinum (2 revisions)
- Spigelia alabamensis (2 revisions)
- Ipomoea cordatotriloba var. cordatotriloba (2 revisions)
- Medicago lupulina (2 revisions)
- Cuscuta gronovii var. latiflora (2 revisions)
- Astragalus sect. Scutanei (2 revisions)
- Desmanthus leptolobus (2 revisions)
- Lupinus latifolius var. dudleyi (2 revisions)
- Astragalus toanus (2 revisions)
- Zapoteca formosa (2 revisions)
- Chylismia cardiophylla (2 revisions)
- Chylismiella pterosperma (2 revisions)
- Oxytropis sericea var. speciosa (2 revisions)
- Vigna radiata (2 revisions)
- Dalea compacta var. pubescens (2 revisions)
- Chamaenerion angustifolium subsp. angustifolium (2 revisions)
- Amsonia fugatei (2 revisions)
- Zeltnera exaltata (2 revisions)
- Vicia (2 revisions)
- Cuscuta nevadensis (2 revisions)
- Astragalus sect. Sericoleuci (2 revisions)
- Astragalus monumentalis (2 revisions)
- Lupinus lepidus var. utahensis (2 revisions)
- Astragalus howellii (2 revisions)
- Ebenopsis ebano (2 revisions)
- Terminalia catappa (2 revisions)
- Astragalus (2 revisions)
- Pediomelum castoreum (2 revisions)
- Phaseolus acutifolius var. tenuifolius (2 revisions)
- Dalea pulchra (2 revisions)
- Epilobium subsect. Nuttalia (2 revisions)
- Cestrum nocturnum (2 revisions)
- Syzygium australe (2 revisions)
- Gyrandra (2 revisions)
- Vicia benghalensis (2 revisions)
- Cuscuta suaveolens (2 revisions)
- Astragalus asotinensis (2 revisions)
- Astragalus nutriosensis (2 revisions)
- Lupinus nootkatensis var. fruticosus (2 revisions)
- Astragalus yoderwilliamsii (2 revisions)
- Lysiloma watsonii (2 revisions)
- Rhexia salicifolia (2 revisions)
- Polygala leptostachys (2 revisions)
- Astragalus sect. Oroboidei (2 revisions)
- Pediomelum latestipulatum var. appressum (2 revisions)
- Strophostyles umbellata (2 revisions)
- Dalea pogonathera var. pogonathera (2 revisions)
- Datura innoxia (2 revisions)
- Oenothera calcicola (2 revisions)
- Sabatia angularis (2 revisions)
- Vicia sativa var. sativa (2 revisions)
- Vallesia (2 revisions)
- Alhagi (2 revisions)
- Astragalus sect. Tennesseenses (2 revisions)
- Lupinus polyphyllus var. saxosus (2 revisions)
- Astragalus inyoensis (2 revisions)
- Sophora leachiana (2 revisions)
- Chamelaucium (2 revisions)
- Oenothera texensis (2 revisions)
- Astragalus australis var. glabriusculus (2 revisions)
- Erythrostemon phyllanthoides (2 revisions)
- Lespedeza cuneata (2 revisions)
- Zornia (2 revisions)
- Epilobium montanum (2 revisions)
- Leucophysalis (2 revisions)
- Cicendia quadrangularis (2 revisions)
- Vachellia constricta (2 revisions)
- Cressa (2 revisions)
- Trifolium (2 revisions)
- Astragalus sect. Lutosi (2 revisions)
- Laburnum (2 revisions)
- Astragalus minthorniae var. minthorniae (2 revisions)
- Thermopsis californica var. argentata (2 revisions)
- Eucalyptus tereticornis (2 revisions)
- Astragalus scopulorum (2 revisions)
- Acmispon intricatus (2 revisions)
- Desmodium arizonicum (2 revisions)
- Senna occidentalis (2 revisions)
- Oenothera neomexicana (2 revisions)
- Lycium andersonii (2 revisions)
- Asclepias verticillata (2 revisions)
- Frasera tubulosa (2 revisions)
- Lathyrus lanszwertii var. leucanthus (2 revisions)
- Vinca major (2 revisions)
- Trifolium arvense (2 revisions)
- Astragalus pycnostachyus (2 revisions)
- Genista monspessulana (2 revisions)
- Astragalus sheldonii (2 revisions)
- Baptisia alba (2 revisions)
- Eugenia confusa (2 revisions)
- Ammannia latifolia (2 revisions)
- Astragalus gracilis (2 revisions)
- Pomaria wootonii (2 revisions)
- Desmodium lineatum (2 revisions)
- Aeschynomene pratensis var. pratensis (2 revisions)
- Oenothera pallida subsp. latifolia (2 revisions)
- Nicandra (2 revisions)
- Asclepias brachystephana (2 revisions)
- Pentalinon (2 revisions)
- Lathyrus splendens (2 revisions)
- Jacquemontia curtissii (2 revisions)
- Trifolium sonorense (2 revisions)
- Astragalus macrodon (2 revisions)
- Amorpha herbacea (2 revisions)
- Astragalus michauxii (2 revisions)
- Baptisia lanceolata var. lanceolata (2 revisions)
- Heimia (2 revisions)
- Delonix (2 revisions)
- Acmispon procumbens (2 revisions)
- Desmodium psilophyllum (2 revisions)
- Indigofera colutea (2 revisions)
- Oenothera villosa subsp. strigosa (2 revisions)
- Oryctes (2 revisions)
- Asclepias oenotheroides (2 revisions)
- Comastoma tenellum (2 revisions)
- Lathyrus sulphureus (2 revisions)
- Calystegia occidentalis (2 revisions)
- Trifolium barbigerum (2 revisions)
- Astragalus serpens (2 revisions)
- Senna corymbosa (2 revisions)
- Astragalus sect. Bicristati (2 revisions)
- Crotalaria rotundifolia var. rotundifolia (2 revisions)
- Lythrum portula (2 revisions)
- Epilobium howellii (2 revisions)
- Astragalus xiphoides (2 revisions)
- Acmispon tomentosus (2 revisions)
- Guilandina (2 revisions)
- Wisteria ×formosa (2 revisions)
- Oenothera clelandii (2 revisions)
- Physalis cinerascens var. spathulifolia (2 revisions)
- Asclepias asperula (2 revisions)
- Gentianella propinqua (2 revisions)
- Calystegia atriplicifolia (2 revisions)
- Trifolium trichocalyx (2 revisions)
- Astragalus aridus (2 revisions)
- Psorothamnus fremontii (2 revisions)
- Leucaena pulverulenta (2 revisions)
- Crotalaria pumila (2 revisions)
- Taraxia subacaulis (2 revisions)
- Clarkia concinna subsp. automixa (2 revisions)
- Adenanthera (2 revisions)
- Hosackia incana (2 revisions)
- Orbexilum pedunculatum (2 revisions)
- Tephrosia spicata (2 revisions)
- Oenothera stricta subsp. stricta (2 revisions)
- Physalis missouriensis (2 revisions)
- Amsonia tabernaemontana var. tabernaemontana (2 revisions)
- Gentianopsis thermalis (2 revisions)
- Calystegia spithamaea (2 revisions)
- Trifolium stoloniferum (2 revisions)
- Astragalus lentiginosus var. floribundus (2 revisions)
- Marina orcuttii (2 revisions)
- Astragalus amnis-amissi (2 revisions)
- Astragalus sabulosus var. vehiculus (2 revisions)
- Lupinus guadalupensis (2 revisions)
- Clarkia franciscana (2 revisions)
- Astragalus sect. Collini (2 revisions)
- Lotus (2 revisions)
- Pediomelum palmeri (2 revisions)
- Canavalia gladiata (2 revisions)
- Myriophyllum sibiricum (2 revisions)
- Catharanthus roseus (2 revisions)
- Cynanchum laeve (2 revisions)
- Gentiana plurisetosa (2 revisions)
- Calystegia silvatica (2 revisions)
- Trifolium nanum (2 revisions)
- Astragalus lentiginosus var. idriensis (2 revisions)
- Dalea grayi (2 revisions)
- Astragalus troglodytus (2 revisions)
- Astragalus laxmannii var. tananaicus (2 revisions)
- Lupinus pusillus var. pusillus (2 revisions)
- Eremothera boothii subsp. decorticans (2 revisions)
- Clarkia mildrediae subsp. mildrediae (2 revisions)
- Astragalus sect. Cusickiani (2 revisions)
- Robinia pseudoacacia (2 revisions)
- Galactia wrightii (2 revisions)
- Elaeagnus commutata (2 revisions)
- Solanum chenopodioides (2 revisions)
- Gonolobus suberosus var. granulatus (2 revisions)
- Gentiana austromontana (2 revisions)
- Volume 12 (2 revisions)
- Merremia tuberosa (2 revisions)
- Trifolium eriocephalum subsp. eriocephalum (2 revisions)
- Astragalus lentiginosus var. nigricalycis (2 revisions)
- Dalea scariosa (2 revisions)
- Astragalus mohavensis var. hemigyrus (2 revisions)
- Astragalus zionis var. zionis (2 revisions)
- Lupinus albifrons (2 revisions)
- Camissoniopsis ignota (2 revisions)
- Oenothera sect. Lavauxia (2 revisions)
- Astragalus whitneyi var. confusus (2 revisions)
- Glycyrrhiza (2 revisions)
- Clitoria mariana (2 revisions)
- Solanum furcatum (2 revisions)
- Matelea sagittifolia (2 revisions)
- Hydrolea (2 revisions)
- Ipomoea tenuiloba var. tenuiloba (2 revisions)
- Trifolium longipes (2 revisions)
- Astragalus monoensis (2 revisions)
- Astragalus rattanii var. rattanii (2 revisions)
- Astragalus waterfallii (2 revisions)
- Lupinus arcticus (2 revisions)
- Clarkia xantiana subsp. parviflora (2 revisions)
- Astragalus kentrophyta var. danaus (2 revisions)
- Oxytropis nigrescens var. nigrescens (2 revisions)
- Rhynchosia (2 revisions)
- Ludwigia peploides subsp. glabrescens (2 revisions)
- Solanum novomexicanum (2 revisions)
- Metastelma barbigerum (2 revisions)
- Asclepias linaria (2 revisions)
- Ipomoea aquatica (2 revisions)
- Trifolium rollinsii (2 revisions)
- Astragalus nyensis (2 revisions)
- Astragalus coccineus (2 revisions)
- Chamaecrista pilosa (2 revisions)
- Lathyrus pratensis (2 revisions)
- Chylismia specicola subsp. hesperia (2 revisions)
- Clarkia delicata (2 revisions)
- Astragalus jejunus (2 revisions)
- Oxytropis besseyi var. besseyi (2 revisions)
- Gymnocladus (2 revisions)
- Ludwigia polycarpa (2 revisions)
- Solanum torvum (2 revisions)
- Vincetoxicum nigrum (2 revisions)
- Amsonia (2 revisions)
- Melilotus wolgicus (2 revisions)
- Cuscuta cephalanthi (2 revisions)
- Mimosa pigra var. asperata (2 revisions)
- Astragalus funereus (2 revisions)
- Lupinus elmeri (2 revisions)
- Prosopis reptans (2 revisions)
- Senegalia berlandieri (2 revisions)
- Chylismia munzii (2 revisions)
- Clarkia subsect. Heterogaura (2 revisions)
- Astragalus chuskanus var. chuskanus (2 revisions)
- Bauhinia (2 revisions)
- Pueraria montana (2 revisions)
- Dalea carnea (2 revisions)
- Onagraceae tribe Circaeeae (2 revisions)
- Cuscuta europaea (2 revisions)
- Spigelia loganioides (2 revisions)
- Ipomoea cordatotriloba var. torreyana (2 revisions)
- Medicago sect. Orbiculares (2 revisions)
- Cuscuta gronovii var. calyptrata (2 revisions)
- Astragalus brazoensis (2 revisions)
- Astragalus missouriensis (2 revisions)
- Lupinus latifolius var. parishii (2 revisions)
- Astragalus toanus var. toanus (2 revisions)
- Zapoteca formosa subsp. schottii (2 revisions)
- Chylismia cardiophylla subsp. cardiophylla (2 revisions)
- Oxytropis nana (2 revisions)
- Asclepias albicans (2 revisions)
- Vigna angularis (2 revisions)
- Dalea tenuis (2 revisions)
- Chamaenerion angustifolium subsp. circumvagum (2 revisions)
- Bouchetia (2 revisions)
- Zeltnera namophila (2 revisions)
- Vicia nigricans (2 revisions)
- Cuscuta obtusiflora (2 revisions)
- Astragalus sericoleucus (2 revisions)
- Astragalus cottamii (2 revisions)
- Lupinus leucophyllus (2 revisions)
- Astragalus arthurii (2 revisions)
- Pithecellobium (2 revisions)
- Terminalia muelleri (2 revisions)
- Polygala alba (2 revisions)
- Astragalus sect. Cenantrum (2 revisions)
- Pediomelum pentaphyllum (2 revisions)
- Phaseolus angustissimus (2 revisions)
- Dalea bicolor (2 revisions)
- Epilobium suffruticosum (2 revisions)
- Cestrum parqui (2 revisions)
- Syzygium cumini (2 revisions)
- Gyrandra blumbergiana (2 revisions)
- Vicia hirsuta (2 revisions)
- Cuscuta subinclusa (2 revisions)
- Astragalus sect. Kelseyani (2 revisions)
- Desmanthus reticulatus (2 revisions)
- Lupinus obtusilobus (2 revisions)
- Astragalus sect. Atrati (2 revisions)
- Lysiloma sabicu (2 revisions)
- Rhexia virginica (2 revisions)
- Polygala lewtonii (2 revisions)
- Astragalus eucosmus (2 revisions)
- Pediomelum reverchonii (2 revisions)
- Macroptilium (2 revisions)
- Dalea pogonathera var. walkerae (2 revisions)
- Epilobium sect. Epilobium (2 revisions)
- Website Training Resources (2 revisions)
- Allamanda cathartica (2 revisions)
- Oenothera cinerea (2 revisions)
- Sabatia calycina (2 revisions)
- Vicia sativa var. angustifolia (2 revisions)
- Evolvulus arizonicus (2 revisions)
- Alhagi maurorum (2 revisions)
- Astragalus tennesseensis (2 revisions)
- Lupinus pratensis (2 revisions)
- Astragalus sect. Jaegeriani (2 revisions)
- Sophora nuttalliana (2 revisions)
- Chamelaucium uncinatum (2 revisions)
- Polygala vulgaris (2 revisions)
- Astragalus australis var. olympicus (2 revisions)
- Coronilla (2 revisions)
- Lespedeza cyrtobotrya (2 revisions)
- Zornia bracteata (2 revisions)
- Epilobium luteum (2 revisions)
- Epilobium hornemannii (2 revisions)
- Leucophysalis grandiflora (2 revisions)
- Halenia (2 revisions)
- Lathyrus decaphyllus (2 revisions)
- Cressa nudicaulis (2 revisions)
- Trifolium aureum (2 revisions)
- Astragalus lutosus (2 revisions)
- Laburnum anagyroides (2 revisions)
- Astragalus minthorniae var. villosus (2 revisions)
- Chamaecrista chamaecristoides var. cruziana (2 revisions)
- Eucalyptus torelliana (2 revisions)
- Rhinotropis maravillasensis (2 revisions)
- Astragalus sect. Scytocarpi (2 revisions)
- Acmispon rigidus (2 revisions)
- Desmodium batocaulon (2 revisions)
- Stylosanthes humilis (2 revisions)
- Lycium torreyi (2 revisions)
- Asclepias pumila (2 revisions)
- Frasera paniculata (2 revisions)
- Lathyrus jepsonii (2 revisions)
- Stylisma pickeringii var. pattersonii (2 revisions)
- Trifolium hybridum (2 revisions)
- Astragalus pycnostachyus var. pycnostachyus (2 revisions)
- Genista tinctoria (2 revisions)
- Astragalus adanus (2 revisions)
- Baptisia lactea (2 revisions)
- Eugenia foetida (2 revisions)
- Oenothera tetraptera (2 revisions)
- Astragalus microcymbus (2 revisions)
- Acmispon grandiflorus var. macranthus (2 revisions)
- Desmodium marilandicum (2 revisions)
- Aeschynomene virginica (2 revisions)
- Oenothera pallida subsp. runcinata (2 revisions)
- Nicandra physalodes (2 revisions)
- Asclepias hypoleuca (2 revisions)
- Frasera albicaulis var. nitida (2 revisions)
- Vachellia farnesiana var. farnesiana (2 revisions)
- Jacquemontia havanensis (2 revisions)
- Trifolium dasyphyllum (2 revisions)
- Astragalus oocarpus (2 revisions)
- Amorpha herbacea var. herbacea (2 revisions)
- Astragalus sect. Nudi (2 revisions)
- Baptisia lanceolata var. elliptica (2 revisions)
- Heimia salicifolia (2 revisions)
- Astragalus miser var. tenuifolius (2 revisions)
- Acmispon procumbens var. procumbens (2 revisions)
- Desmodium retinens (2 revisions)
- Senna pendula var. glabrata (2 revisions)
- Oenothera grandiflora (2 revisions)
- Oryctes nevadensis (2 revisions)
- Asclepias emoryi (2 revisions)
- Gentianella (2 revisions)
- Lathyrus sulphureus var. sulphureus (2 revisions)
- Alstonia scholaris (2 revisions)
- Trifolium grayi (2 revisions)
- Astragalus perianus (2 revisions)
- Eysenhardtia (2 revisions)
- Funding (2 revisions)
- Astragalus webberi (2 revisions)
- Crotalaria rotundifolia var. linaria (2 revisions)
- Lythrum salicaria (2 revisions)
- Epilobium oreganum (2 revisions)
- Astragalus cronquistii (2 revisions)
- Cercis orbiculata (2 revisions)
- Hylodesmum glutinosum (2 revisions)
- Piscidia (2 revisions)
- Oenothera curtissii (2 revisions)
- Physalis cordata (2 revisions)
- Asclepias asperula subsp. asperula (2 revisions)
- Rhabdadenia biflora (2 revisions)
- Calystegia atriplicifolia subsp. atriplicifolia (2 revisions)
- Trifolium willdenovii (2 revisions)
- Astragalus wetherillii (2 revisions)
- Psorothamnus fremontii var. fremontii (2 revisions)
- Astragalus preussii var. latus (2 revisions)
- Crotalaria virgulata (2 revisions)
- Taraxia tanacetifolia (2 revisions)
- Clarkia concinna subsp. raichei (2 revisions)
- Astragalus lonchocarpus (2 revisions)
- Hosackia stipularis (2 revisions)
- Orbexilum simplex (2 revisions)
- Tephrosia chrysophylla (2 revisions)
- Haloragaceae (2 revisions)
- Physalis mollis (2 revisions)
- Asclepias rubra (2 revisions)
- Gentianopsis macrantha (2 revisions)
- Calystegia spithamaea subsp. spithamaea (2 revisions)
- Trifolium calcaricum (2 revisions)
- Astragalus lentiginosus var. macrolobus (2 revisions)
- Cercis canadensis (2 revisions)
- Astragalus amblytropis (2 revisions)
- Astragalus iselyi (2 revisions)
- Lupinus havardii (2 revisions)
- Camissonia strigulosa (2 revisions)
- Clarkia subsect. Flexicaules (2 revisions)
- Astragalus collinus (2 revisions)
- Lotus angustissimus (2 revisions)
- Canavalia rosea (2 revisions)
- Myriophyllum laxum (2 revisions)
- Quincula lobata (2 revisions)
- Cynanchum ligulatum (2 revisions)
- Gentiana calycosa (2 revisions)
- Calystegia silvatica subsp. fraterniflora (2 revisions)
- Trifolium parryi (2 revisions)
- Astragalus lentiginosus var. oropedii (2 revisions)
- Dalea pringlei (2 revisions)
- Astragalus gilensis (2 revisions)
- Desmanthus acuminatus (2 revisions)
- Lupinus pusillus var. intermontanus (2 revisions)
- Eremothera boothii subsp. desertorum (2 revisions)
- Clarkia mildrediae subsp. lutescens (2 revisions)
- Prosopis glandulosa (2 revisions)
- Robinia viscosa (2 revisions)
- Galactia joselyniae (2 revisions)
- Elaeagnus angustifolia (2 revisions)
- Solanum citrullifolium (2 revisions)
- Allamanda (2 revisions)
- Gentiana andrewsii (2 revisions)
- Volume 19 (2 revisions)
- Merremia aegyptia (2 revisions)
- Trifolium eriocephalum subsp. cascadense (2 revisions)
- Mimosa grahamii (2 revisions)
- Dalea bartonii (2 revisions)
- Astragalus hypoxylus (2 revisions)
- Astragalus zionis var. vigulus (2 revisions)
- Lupinus albifrons var. albifrons (2 revisions)
- Camissoniopsis micrantha (2 revisions)
- Clarkia davyi (2 revisions)
- Astragalus ceramicus (2 revisions)
- Glycyrrhiza glabra (2 revisions)
- Clitoria mariana var. mariana (2 revisions)
- Ludwigia peruviana (2 revisions)
- Ochrosia (2 revisions)
- Matelea radiata (2 revisions)
- Hydrolea quadrivalvis (2 revisions)
- Ipomoea tenuiloba var. lemmonii (2 revisions)
- Acacia melanoxylon (2 revisions)
- Astragalus ravenii (2 revisions)
- Astragalus rattanii var. jepsonianus (2 revisions)
- Astragalus feensis (2 revisions)
- Lupinus argenteus (2 revisions)
- Neoholmgrenia hilgardii (2 revisions)
- Clarkia sect. Phaeostoma (2 revisions)
- Astragalus kentrophyta var. douglasii (2 revisions)
- Oxytropis nigrescens var. uniflora (2 revisions)
- Rhynchosia michauxii (2 revisions)
- Ludwigia peploides subsp. montevidensis (2 revisions)
- Solanum perplexum (2 revisions)
- Metastelma blodgettii (2 revisions)
- Asclepias cutleri (2 revisions)
- Ipomoea imperati (2 revisions)
- Trifolium bolanderi (2 revisions)
- Astragalus leptocarpus (2 revisions)
- Astragalus nudisiliquus (2 revisions)
- Lupinus argenteus var. utahensis (2 revisions)
- Vachellia macracantha (2 revisions)
- Chylismia walkeri (2 revisions)
- Clarkia subsect. Sympherica (2 revisions)
- Astragalus limnocharis (2 revisions)
- Oxytropis besseyi var. ventosa (2 revisions)
- Rhynchosia cinerea (2 revisions)
- Oenothera capillifolia subsp. berlandieri (2 revisions)
- Solanum triflorum (2 revisions)
- Vincetoxicum rossicum (2 revisions)
- Echites (2 revisions)
- Trigonella (2 revisions)
- Cuscuta chinensis (2 revisions)
- Astragalus spaldingii (2 revisions)
- Astragalus inflexus (2 revisions)
- Lupinus excubitus (2 revisions)
- Astragalus bisulcatus var. bisulcatus (2 revisions)
- Senegalia ×emoryana (2 revisions)
- Oenothera sect. Peniophyllum (2 revisions)
- Clarkia heterandra (2 revisions)
- Astragalus chuskanus var. spellenbergii (2 revisions)
- Peltophorum (2 revisions)
- Pueraria montana var. lobata (2 revisions)
- Dalea carnea var. carnea (2 revisions)
- Fuchsia (2 revisions)
- Cuscuta subg. Grammica (2 revisions)
- Spigelia texana (2 revisions)
- Ipomoea batatas (2 revisions)
- Medicago orbicularis (2 revisions)
- Cuscuta harperi (2 revisions)
- Microlobium (2 revisions)
- Astragalus missouriensis var. missouriensis (2 revisions)
- Chamaecrista rotundifolia var. rotundifolia (2 revisions)
- Astragalus toanus var. scidulus (2 revisions)
- Chamaecrista (2 revisions)
- Chylismia cardiophylla subsp. robusta (2 revisions)
- Asemeia (2 revisions)
- Oxytropis lambertii (2 revisions)
- Fabaceae (2 revisions)
- Gleditsia aquatica (2 revisions)
- Dalea cahaba (2 revisions)
- Bouchetia erecta (2 revisions)
- Zeltnera venusta (2 revisions)
- Vicia nigricans var. gigantea (2 revisions)
- Cuscuta obtusiflora var. glandulosa (2 revisions)
- Mimosa quadrivalvis var. floridana (2 revisions)
- Astragalus deterior (2 revisions)
- Lupinus littoralis (2 revisions)
- Prosopis strombulifera var. strombulifera (2 revisions)
- Pithecellobium keyense (2 revisions)
- Oenothera spachiana (2 revisions)
- Polygala appendiculata (2 revisions)
- Astragalus umbellatus (2 revisions)
- Pediomelum californicum (2 revisions)
- Phaseolus filiformis (2 revisions)
- Dalea bicolor var. argyrea (2 revisions)
- Epilobium sect. Epilobiopsis (2 revisions)
- Chamaesaracha (2 revisions)
- Syzygium jambos (2 revisions)
- Sabatia (2 revisions)
- Vicia disperma (2 revisions)
- Cuscuta suksdorfii (2 revisions)
- Astragalus kelseyae (2 revisions)
- Astragalus sect. Gigantei (2 revisions)
- Lupinus onustus (2 revisions)
- Astragalus atratus (2 revisions)
- Lysiloma latisiliquum (2 revisions)
- Rhexia cubensis (2 revisions)
- Polygala lutea (2 revisions)
- Astragalus robbinsii (2 revisions)
- Pediomelum cyphocalyx (2 revisions)
- Macroptilium atropurpureum (2 revisions)
- Dalea lasiathera (2 revisions)
- Epilobium obcordatum (2 revisions)
- Amsonia kearneyana (2 revisions)
- Pachysandra terminalis (2 revisions)
- Sabatia campanulata (2 revisions)
- Vicia grandiflora (2 revisions)
- Evolvulus alsinoides (2 revisions)
- Mimosa strigillosa (2 revisions)
- Astragalus sect. Megacarpi (2 revisions)
- Lupinus rivularis (2 revisions)
- Astragalus jaegerianus (2 revisions)
- Sophora tomentosa (2 revisions)
- Polygala watsonii (2 revisions)
- Astragalus sect. Nuculiella (2 revisions)
- Coronilla valentina (2 revisions)
- Lespedeza daurica (2 revisions)
- Zornia reticulata (2 revisions)
- Zornia gemella (2 revisions)
- Epilobium hornemannii subsp. hornemannii (2 revisions)
- Leucophysalis nana (2 revisions)
- Apocynaceae (2 revisions)
- Halenia deflexa (2 revisions)
- Lathyrus decaphyllus var. decaphyllus (2 revisions)
- Cressa truxillensis (2 revisions)
- Trifolium dubium (2 revisions)
- Dichrostachys (2 revisions)
- Laburnum ×watereri (2 revisions)
- Astragalus vallaris (2 revisions)
- Thermopsis californica var. semota (2 revisions)
- Eucalyptus viminalis (2 revisions)
- Astragalus flexuosus (2 revisions)
- Acmispon argyraeus (2 revisions)
- Desmodium canadense (2 revisions)
- Arachis (2 revisions)
- Oenothera arizonica (2 revisions)
- Amsonia longiflora var. salpignantha (2 revisions)
- Asclepias cordifolia (2 revisions)
- Frasera puberulenta (2 revisions)
- Lathyrus jepsonii var. jepsonii (2 revisions)
- Stylisma patens (2 revisions)
- Mimosa turneri (2 revisions)
- Astragalus pycnostachyus var. lanosissimus (2 revisions)
- Spartium (2 revisions)
- Astragalus terminalis (2 revisions)
- Baptisia lactea var. lactea (2 revisions)
- Eugenia rhombea (2 revisions)
- Ammannia grayi (2 revisions)
- Astragalus hallii (2 revisions)
- Acmispon maritimus (2 revisions)
- Desmodium marilandicum var. marilandicum (2 revisions)
- Aeschynomene indica (2 revisions)
- Oenothera pallida subsp. trichocalyx (2 revisions)
- Nicotiana (2 revisions)
- Asclepias solanoana (2 revisions)
- Frasera albicaulis var. idahoensis (2 revisions)
- Lathyrus ochroleucus (2 revisions)
- Jacquemontia tamnifolia (2 revisions)
- Trifolium attenuatum (2 revisions)
- Astragalus deanei (2 revisions)
- Amorpha herbacea var. floridana (2 revisions)
- Astragalus serenoi (2 revisions)
- Chamaecrista flexuosa (2 revisions)
- Lagerstroemia (2 revisions)
- Astragalus miser var. serotinus (2 revisions)
- Acmispon procumbens var. jepsonii (2 revisions)
- Desmodium rosei (2 revisions)
- Indigofera texana (2 revisions)
- Oenothera cespitosa subsp. macroglottis (2 revisions)
- Petunia (2 revisions)
- Asclepias nyctaginifolia (2 revisions)
- Gentianella auriculata (2 revisions)
- Lathyrus sulphureus var. argillaceus (2 revisions)
- Angadenia berteroi (2 revisions)
- Trifolium jokerstii (2 revisions)
- Astragalus pubentissimus (2 revisions)
- Eysenhardtia spinosa (2 revisions)
- Astragalus bicristatus (2 revisions)
- Crotalaria avonensis (2 revisions)
- Oenothera havardii (2 revisions)
- Epilobium ciliatum (2 revisions)
- Astragalus pinonis (2 revisions)
- Pomaria jamesii (2 revisions)
- Hylodesmum nudiflorum (2 revisions)
- Piscidia piscipula (2 revisions)
- Physalis crassifolia (2 revisions)
- Asclepias asperula subsp. capricornu (2 revisions)
- Gentianella propinqua subsp. propinqua (2 revisions)
- Calystegia atriplicifolia subsp. buttensis (2 revisions)
- Trifolium obtusiflorum (2 revisions)
- Astragalus sparsiflorus (2 revisions)
- Psorothamnus fremontii var. attenuatus (2 revisions)
- Astragalus cutleri (2 revisions)
- Crotalaria virgulata subsp. grantiana (2 revisions)
- Taraxia breviflora (2 revisions)
- Clarkia breweri (2 revisions)
- Astragalus hamiltonii (2 revisions)
- Hosackia stipularis var. stipularis (2 revisions)
- Hoita (2 revisions)
- Senna ripleyana (2 revisions)
- Haloragis (2 revisions)
- Physalis mollis var. mollis (2 revisions)
- Asclepias michauxii (2 revisions)
- Gentianopsis holopetala (2 revisions)
- Calystegia spithamaea subsp. stans (2 revisions)
- Trifolium virginicum (2 revisions)
- Astragalus lentiginosus var. ineptus (2 revisions)
- Senna durangensis var. iselyi (2 revisions)
- Mimosa latidens (2 revisions)
- Astragalus sect. Neglecti (2 revisions)
- Lupinus hirsutissimus (2 revisions)
- Camissonia benitensis (2 revisions)
- Clarkia lassenensis (2 revisions)
- Astragalus collinus var. collinus (2 revisions)
- Lotus corniculatus (2 revisions)
- Galactia (2 revisions)
- Myriophyllum humile (2 revisions)
- Salpichroa (2 revisions)
- Cynanchum unifarium (2 revisions)
- Trachelospermum (2 revisions)
- Calystegia silvatica subsp. disjuncta (2 revisions)
- Trifolium parryi subsp. parryi (2 revisions)
- Astragalus lentiginosus var. negundo (2 revisions)
- Dalea pringlei var. pringlei (2 revisions)
- Astragalus siliceus (2 revisions)
- Astragalus sect. Hypoglottidei (2 revisions)
- Lupinus pusillus var. rubens (2 revisions)
- Eremothera boothii subsp. intermedia (2 revisions)
- Clarkia stellata (2 revisions)
- Astragalus filipes (2 revisions)
- Coursetia (2 revisions)
- Galactia canescens (2 revisions)
- Elaeagnus multiflora (2 revisions)
- Solanum citrullifolium var. citrullifolium (2 revisions)
- Amsonia tabernaemontana var. salicifolia (2 revisions)
- Gentiana andrewsii var. andrewsii (2 revisions)
- Volume 20 (2 revisions)
- Merremia cissoides (2 revisions)
- Trifolium eriocephalum subsp. cusickii (2 revisions)
- Astragalus lentiginosus var. coachellae (2 revisions)
- Dalea sabinalis (2 revisions)
- Astragalus tricarinatus (2 revisions)
- Astragalus callithrix (2 revisions)
- Lupinus albifrons var. abramsii (2 revisions)
- Camissoniopsis hirtella (2 revisions)
- Clarkia prostrata (2 revisions)
- Astragalus ceramicus var. ceramicus (2 revisions)
- Glycyrrhiza lepidota (2 revisions)
- Clitoria mariana var. pubescentia (2 revisions)
- Ludwigia sect. Pterocaulon (2 revisions)
- Solanum hindsianum (2 revisions)
- Matelea reticulata (2 revisions)
- Hydrolea uniflora (2 revisions)
- Ipomoea thurberi (2 revisions)
- Trifolium longipes subsp. longipes (2 revisions)
- Astragalus sect. Pulsiferani (2 revisions)
- Astragalus claranus (2 revisions)
- Astragalus neomexicanus (2 revisions)
- Lupinus argenteus var. argenteus (2 revisions)
- Neoholmgrenia andina (2 revisions)
- Clarkia subsect. Lautiflorae (2 revisions)
- Prosopis glandulosa var. torreyana (2 revisions)
- Oxytropis nigrescens var. lonchopoda (2 revisions)
- Rhynchosia reniformis (2 revisions)
- Ludwigia sect. Ludwigia (2 revisions)
- Solanum pseudocapsicum (2 revisions)
- Metastelma mexicanum (2 revisions)
- Ipomoea asarifolia (2 revisions)
- Trifolium lemmonii (2 revisions)
- Astragalus lindheimeri (2 revisions)
- Astragalus utahensis (2 revisions)
- Lupinus breweri (2 revisions)
- Lathyrus aphaca (2 revisions)
- Chylismia walkeri subsp. walkeri (2 revisions)
- Astragalus limnocharis var. limnocharis (2 revisions)
- Oxytropis besseyi var. argophylla (2 revisions)
- Rhynchosia difformis (2 revisions)
- Ludwigia suffruticosa (2 revisions)
- Plumeria obtusa (2 revisions)
- Sphenocleaceae (2 revisions)
- Ipomoea cairica (2 revisions)
- Acacia redolens (2 revisions)
- Cuscuta chinensis var. applanata (2 revisions)
- Astragalus tyghensis (2 revisions)
- Astragalus parryi (2 revisions)
- Lupinus formosus (2 revisions)
- Astragalus bisulcatus var. major (2 revisions)
- Senegalia greggii (2 revisions)
- Chylismia eastwoodiae (2 revisions)
- Astragalus micromerius (2 revisions)
- Oxytropis campestris var. roaldii (2 revisions)
- Amphicarpaea (2 revisions)
- Senna ligustrina (2 revisions)
- Fuchsia magellanica (2 revisions)
- Cuscuta americana (2 revisions)
- Spigelia hedyotidea (2 revisions)
- Ipomoea rupicola (2 revisions)
- Medicago sect. Spirocarpos (2 revisions)
- Alstonia macrophylla (2 revisions)
- Astragalus gambelianus (2 revisions)
- Astragalus missouriensis var. amphibolus (2 revisions)
- Lupinus latifolius var. subalpinus (2 revisions)
- Astragalus linifolius (2 revisions)
- Calliandra (2 revisions)
- Chylismia arenaria (2 revisions)
- Oxytropis lambertii var. lambertii (2 revisions)
- Cercis occidentalis (2 revisions)
- Ancistrotropis (2 revisions)
- Dalea reverchonii (2 revisions)
- Oenothera subsect. Salpingia (2 revisions)
- Browallia (2 revisions)
- Mandevilla brachysiphon (2 revisions)
- Vicia cracca (2 revisions)
- Cuscuta occidentalis (2 revisions)
- Astragalus aretioides (2 revisions)
- Astragalus sect. Layneani (2 revisions)
- Lupinus littoralis var. littoralis (2 revisions)
- Astragalus misellus (2 revisions)
- Pithecellobium dulce (2 revisions)
- Terminalia buceras (2 revisions)
- Parkinsonia (2 revisions)
- Pediomelum mephiticum (2 revisions)
- Phaseolus leptostachyus (2 revisions)
- Dalea tentaculoides (2 revisions)
- Epilobium cleistogamum (2 revisions)
- Chamaesaracha coronopus (2 revisions)
- Sabatia campestris (2 revisions)
- Vicia minutiflora (2 revisions)
- Cuscuta tuberculata (2 revisions)
- Colutea (2 revisions)
- Astragalus giganteus (2 revisions)
- Cercis (2 revisions)
- Astragalus atratus var. atratus (2 revisions)
- Chamaecrista calycioides (2 revisions)
- Rhexia nashii (2 revisions)
- Polygala mariana (2 revisions)
- Astragalus robbinsii var. robbinsii (2 revisions)
- Aspalthium (2 revisions)
- Cercis canadensis subsp. texensis (2 revisions)
- Dalea enneandra (2 revisions)
- Epilobium siskiyouense (2 revisions)
- Datura metel (2 revisions)
- Oenothera cinerea subsp. cinerea (2 revisions)
- Sabatia stellaris (2 revisions)
- Vicia lathyroides (2 revisions)
- Evolvulus grisebachii (2 revisions)
- Hedysarum (2 revisions)
- Astragalus megacarpus (2 revisions)
- Lupinus sabineanus (2 revisions)
- Neptunia oleracea (2 revisions)
- Sophora tomentosa subsp. bahamensis (2 revisions)
- Eucalyptus camaldulensis (2 revisions)
- Astragalus chinensis (2 revisions)
- Coronilla valentina subsp. glauca (2 revisions)
- Lespedeza frutescens (2 revisions)
- Lespedeza hirta (2 revisions)
- Nissolia (2 revisions)
- Epilobium hornemannii subsp. behringianum (2 revisions)
- Lycianthes (2 revisions)
- Amsonia ciliata var. ciliata (2 revisions)
- Halenia rothrockii (2 revisions)
- Lathyrus decaphyllus var. incanus (2 revisions)
- Petrogenia (2 revisions)
- Trifolium campestre (2 revisions)
- Astragalus sect. Pterocarpi (2 revisions)
- Cytisus (2 revisions)
- Astragalus cimae (2 revisions)
- Thermopsis divaricarpa (2 revisions)
- Leptospermum (2 revisions)
- Astragalus flexuosus var. flexuosus (2 revisions)
- Acmispon argyraeus var. argyraeus (2 revisions)
- Desmodium canescens (2 revisions)
- Arachis hypogaea (2 revisions)
- Lycium carolinianum (2 revisions)
- Asclepias cryptoceras (2 revisions)
- Frasera albomarginata (2 revisions)
- Lathyrus jepsonii var. californicus (2 revisions)
- Stylisma patens var. patens (2 revisions)
- Trifolium ornithopodioides (2 revisions)
- Astragalus oxyphysus (2 revisions)
- Spartium junceum (2 revisions)
- Astragalus riparius (2 revisions)
- Baptisia lactea var. pendula (2 revisions)
- Eugenia uniflora (2 revisions)
- Ammannia robusta (2 revisions)
- Astragalus hallii var. hallii (2 revisions)
- Acmispon maritimus var. maritimus (2 revisions)
- Desmodium marilandicum var. ciliare (2 revisions)
- Aeschynomene rudis (2 revisions)
- Oenothera sect. Oenothera (2 revisions)
- Nicotiana acuminata (2 revisions)
- Asclepias feayi (2 revisions)
- Frasera ackermaniae (2 revisions)
- Lathyrus nevadensis (2 revisions)
- Jacquemontia agrestis (2 revisions)
- Trifolium brandegeei (2 revisions)
- Mimosa biuncifera (2 revisions)
- Amorpha crenulata (2 revisions)
- Astragalus serenoi var. serenoi (2 revisions)
- Baptisia leucophaea (2 revisions)
- Lagerstroemia indica (2 revisions)
- Astragalus miser var. hylophilus (2 revisions)
- Acmispon glaber (2 revisions)
- Desmodium rotundifolium (2 revisions)
- Indigofera caroliniana (2 revisions)
- Oenothera nutans (2 revisions)
- Amsonia tharpii (2 revisions)
- Asclepias tomentosa (2 revisions)
- Gentianella tortuosa (2 revisions)
- Lathyrus graminifolius (2 revisions)
- Calystegia occidentalis subsp. occidentalis (2 revisions)
- Acacia baileyana (2 revisions)
- Astragalus pubentissimus var. pubentissimus (2 revisions)
- Eysenhardtia texana (2 revisions)
- Astragalus ertterae (2 revisions)
- Crotalaria spectabilis (2 revisions)
- Lythrum tribracteatum (2 revisions)
- Epilobium ciliatum subsp. ciliatum (2 revisions)
- Astragalus atwoodii (2 revisions)
- Acmispon tomentosus var. tomentosus (2 revisions)
- Hylodesmum pauciflorum (2 revisions)
- Millettia (2 revisions)
- Oenothera grandis (2 revisions)
- Physalis ×elliottii (2 revisions)
- Asclepias viridis (2 revisions)
- Gentianella propinqua subsp. aleutica (2 revisions)
- Calystegia subacaulis (2 revisions)
- Trifolium microdon (2 revisions)
- Astragalus sparsiflorus var. sparsiflorus (2 revisions)
- Psorothamnus emoryi (2 revisions)
- Astragalus eastwoodiae (2 revisions)
- Chamaecrista greggii var. greggii (2 revisions)
- Clarkia sect. Clarkia (2 revisions)
- Astragalus sect. Drabella (2 revisions)
- Hosackia stipularis var. ottleyi (2 revisions)
- Hoita orbicularis (2 revisions)
- Tephrosia mysteriosa (2 revisions)
- Oenothera psammophila (2 revisions)
- Physalis mollis var. variovestita (2 revisions)
- Asclepias tuberosa (2 revisions)
- Gentianopsis barbellata (2 revisions)
- Apocynum cannabinum (2 revisions)
- Trifolium reflexum (2 revisions)
- Astragalus lentiginosus var. semotus (2 revisions)
- Marina orcuttii var. orcuttii (2 revisions)
- Astragalus sect. Villosi (2 revisions)
- Astragalus neglectus (2 revisions)
- Lupinus kingii (2 revisions)
- Clarkia arcuata (2 revisions)
- Astragalus collinus var. laurentii (2 revisions)
- Hoffmannseggia drummondii (2 revisions)
- Galactia regularis (2 revisions)
- Myriophyllum pinnatum (2 revisions)
- Salpichroa origanifolia (2 revisions)
- Funastrum (2 revisions)
- Gentiana parryi (2 revisions)
- Calystegia macounii (2 revisions)
- Trifolium parryi subsp. montanense (2 revisions)
- Astragalus lentiginosus var. chartaceus (2 revisions)
- Dalea exigua (2 revisions)
- Astragalus wittmannii (2 revisions)
- Astragalus agrestis (2 revisions)
- Lupinus shockleyi (2 revisions)
- Eremothera pygmaea (2 revisions)
- Clarkia mosquinii (2 revisions)
- Astragalus inversus (2 revisions)
- Coursetia glandulosa (2 revisions)
- Cercis canadensis subsp. mexicana (2 revisions)
- Elaeagnus pungens (2 revisions)
- Solanum citrullifolium var. setigerum (2 revisions)
- Gonolobus taylorianus (2 revisions)
- Gentiana andrewsii var. dakotica (2 revisions)
- Volume 21 (2 revisions)
- Merremia quinquefolia (2 revisions)
- Trifolium eriocephalum subsp. villiferum (2 revisions)
- Astragalus lentiginosus var. micans (2 revisions)
- Senna hirsuta var. glaberrima (2 revisions)
- Mimosa monclovensis (2 revisions)
- Astragalus piutensis (2 revisions)
- Lupinus albifrons var. austromontanus (2 revisions)
- Camissoniopsis pallida (2 revisions)
- Clarkia purpurea (2 revisions)
- Astragalus ceramicus var. filifolius (2 revisions)
- Oxytropis (2 revisions)
- Clitoria ternatea (2 revisions)
- Ludwigia decurrens (2 revisions)
- Solanum interius (2 revisions)
- Matelea edwardsensis (2 revisions)
- Cryptostegia grandiflora (2 revisions)
- Ipomoea macrorhiza (2 revisions)
- Trifolium longipes subsp. atrorubens (2 revisions)
- Astragalus tegetarioides (2 revisions)
- Astragalus breweri (2 revisions)
- Desmanthus cooleyi (2 revisions)
- Lupinus argenteus var. argentatus (2 revisions)
- Eulobus (2 revisions)
- Clarkia biloba (2 revisions)
- Astragalus kentrophyta var. jessiae (2 revisions)
- Oxytropis huddelsonii (2 revisions)
- Rhynchosia americana (2 revisions)
- Ludwigia alternifolia (2 revisions)
- Solanum pseudogracile (2 revisions)
- Amsonia tomentosa (2 revisions)
- Ipomoea pes-caprae (2 revisions)
- Ononis (2 revisions)
- Astragalus sect. Succumbentes (2 revisions)
- Astragalus purshii (2 revisions)
- Lupinus breweri var. breweri (2 revisions)
- Lathyrus angulatus (2 revisions)
- Chylismia walkeri subsp. tortilis (2 revisions)
- Clarkia lewisii (2 revisions)
- Astragalus limnocharis var. tabulaeus (2 revisions)
- Oxytropis besseyi var. salmonensis (2 revisions)
- Cajanus (2 revisions)
- Ludwigia lanceolata (2 revisions)
- Solanum triquetrum (2 revisions)
- Sphenoclea (2 revisions)
- Ipomoea capillacea (2 revisions)
- Trigonella foenum-graecum (2 revisions)
- Cuscuta compacta (2 revisions)
- Astragalus lyallii (2 revisions)
- Astragalus castaneiformis (2 revisions)
- Lupinus formosus var. formosus (2 revisions)
- Astragalus bisulcatus var. haydenianus (2 revisions)
- Senegalia roemeriana (2 revisions)
- Chylismia scapoidea (2 revisions)
- Gayophytum humile (2 revisions)
- Oxytropis campestris var. spicata (2 revisions)
- Amphicarpaea bracteata (2 revisions)
- Dalea carnea var. albida (2 revisions)
- Circaea (2 revisions)
- Cuscuta azteca (2 revisions)
- Mitreola (2 revisions)
- Ipomoea pandurata (2 revisions)
- Medicago scutellata (2 revisions)
- Tabernaemontana alba (2 revisions)
- Astragalus didymocarpus (2 revisions)
- Astragalus missouriensis var. humistratus (2 revisions)
- Lupinus latifolius var. viridifolius (2 revisions)
- Astragalus rafaelensis (2 revisions)
- Calliandra eriophylla (2 revisions)
- Oenothera canescens (2 revisions)
- Oxytropis lambertii var. articulata (2 revisions)
- Erythrostemon (2 revisions)
- Ancistrotropis peduncularis (2 revisions)
- Dalea gattingeri (2 revisions)
- Browallia americana (2 revisions)
- Zeltnera trichantha (2 revisions)
- Acacia verticillata (2 revisions)
- Cuscuta odontolepis (2 revisions)
- Astragalus tridactylicus (2 revisions)
- Astragalus layneae (2 revisions)
- Lupinus littoralis var. variicolor (2 revisions)
- Astragalus misellus var. misellus (2 revisions)
- Pithecellobium unguis-cati (2 revisions)
- Terminalia molinetii (2 revisions)
- Astragalus americanus (2 revisions)
- Pediomelum verdiense (2 revisions)
- Phaseolus maculatus (2 revisions)
- Senna mexicana (2 revisions)
- Epilobium campestre (2 revisions)
- Chamaesaracha sordida (2 revisions)
- Oenothera subsect. Stenosiphon (2 revisions)
- Sabatia formosa (2 revisions)
- Vicia ludoviciana (2 revisions)
- Cuscuta umbellata (2 revisions)
- Colutea arborescens (2 revisions)
- Astragalus sect. Sarcocarpi (2 revisions)
- Chamaecrista serpens var. wrightii (2 revisions)
- Astragalus atratus var. mensanus (2 revisions)
- Cladrastis (2 revisions)
- Rhexia mariana (2 revisions)
- Polygala nana (2 revisions)
- Astragalus robbinsii var. minor (2 revisions)
- Aspalthium bituminosum (2 revisions)
- Ceratonia siliqua (2 revisions)
- Dalea nana (2 revisions)
- Epilobium palustre (2 revisions)
- Datura quercifolia (2 revisions)
- Oenothera cinerea subsp. parksii (2 revisions)
- Mandevilla macrosiphon (2 revisions)
- Vicia faba (2 revisions)
- Evolvulus sericeus (2 revisions)
- Hedysarum boreale (2 revisions)
- Astragalus oophorus (2 revisions)
- Lupinus sericatus (2 revisions)
- Astragalus sect. Pachypodes (2 revisions)
- Sophora tomentosa subsp. occidentalis (2 revisions)
- Oenothera fruticosa subsp. fruticosa (2 revisions)
- Parkinsonia florida (2 revisions)
- Anthyllis (2 revisions)
- Lespedeza hirta subsp. hirta (2 revisions)
- Cercis canadensis subsp. canadensis (2 revisions)
- Epilobium lactiflorum (2 revisions)
- Lycianthes asarifolia (2 revisions)
- Asclepias subulata (2 revisions)
- Lomatogonium (2 revisions)
- Lathyrus eucosmus (2 revisions)
- Petrogenia repens (2 revisions)
- Trifolium lupinaster (2 revisions)
- Astragalus casei (2 revisions)
- Senna armata (2 revisions)
- Astragalus cimae var. cimae (2 revisions)
- Thermopsis fraxinifolia (2 revisions)
- Leptospermum laevigatum (2 revisions)
- Astragalus flexuosus var. greenei (2 revisions)
- Acmispon argyraeus var. multicaulis (2 revisions)
- Denisophytum (2 revisions)
- Arachis glabrata (2 revisions)
- Lycium berlandieri (2 revisions)
- Asclepias cryptoceras subsp. cryptoceras (2 revisions)
- Nerium oleander (2 revisions)
- Lathyrus delnorticus (2 revisions)
- Stylisma patens var. angustifolia (2 revisions)
- Trifolium vesiculosum (2 revisions)
- Astragalus sect. Trichopodi (2 revisions)
- Ulex (2 revisions)
- Neptunia pubescens (2 revisions)
- Baptisia sphaerocarpa (2 revisions)
- Oenothera pilosella (2 revisions)
- Parkinsonia texana var. macra (2 revisions)
- Acmispon maritimus var. brevivexillus (2 revisions)
- Desmodium marilandicum var. lancifolium (2 revisions)
- Aeschynomene viscidula (2 revisions)
- Oenothera subsect. Emersonia (2 revisions)
- Nicotiana attenuata (2 revisions)
- Amsonia hubrichtii (2 revisions)
- Frasera montana (2 revisions)
- Lathyrus nevadensis var. nevadensis (2 revisions)
- Jacquemontia pringlei (2 revisions)
- Trifolium wormskioldii (2 revisions)
- Astragalus palmeri (2 revisions)
- Amorpha canescens (2 revisions)
- Astragalus serenoi var. shockleyi (2 revisions)
- Baptisia bracteata (2 revisions)
- Astragalus miser var. praeteritus (2 revisions)
- Acmispon glaber var. glaber (2 revisions)
- Desmodium scopulorum (2 revisions)
- Indigofera sphaerocarpa (2 revisions)
- Oenothera biennis (2 revisions)
- Petunia axillaris (2 revisions)
- Asclepias latifolia (2 revisions)
- Gentianella amarella (2 revisions)
- Lathyrus polyphyllus (2 revisions)
- Calystegia occidentalis subsp. fulcrata (2 revisions)
- Trifolium monanthum (2 revisions)
- Astragalus pubentissimus var. peabodianus (2 revisions)
- Eysenhardtia orthocarpa (2 revisions)
- Astragalus sect. Porrecti (2 revisions)
- Crotalaria retusa (2 revisions)
- Lythrum virgatum (2 revisions)
- Epilobium ciliatum subsp. glandulosum (2 revisions)
- Astragalus aequalis (2 revisions)
- Acmispon tomentosus var. glabriusculus (2 revisions)
- Alysicarpus (2 revisions)
- Millettia pinnata (2 revisions)
- Oenothera falfurriae (2 revisions)
- Elliottii (2 revisions)
- Asclepias eastwoodiana (2 revisions)
- Gentianopsis (2 revisions)
- Calystegia subacaulis subsp. subacaulis (2 revisions)
- Trifolium microcephalum (2 revisions)
- Mimosa distachya var. laxiflora (2 revisions)
- Psorothamnus emoryi var. emoryi (2 revisions)
- Astragalus debequaeus (2 revisions)
- Lupinus (2 revisions)
- Camissonia kernensis (2 revisions)
- Oenothera lavandulifolia (2 revisions)
- Astragalus spatulatus (2 revisions)
- Hosackia rosea (2 revisions)
- Hoita strobilina (2 revisions)
- Tephrosia florida (2 revisions)
- Haloragis erecta (2 revisions)
- Catharanthus (2 revisions)
- Asclepias tuberosa subsp. tuberosa (2 revisions)
- Gentianopsis simplex (2 revisions)
- Calystegia spithamaea subsp. purshiana (2 revisions)
- Acacia dealbata (2 revisions)
- Astragalus lentiginosus var. sierrae (2 revisions)
- Marina diffusa (2 revisions)
- Astragalus distortus (2 revisions)
- Astragalus sect. Uliginosi (2 revisions)
- Lupinus luteolus (2 revisions)
- Camissonia lacustris (2 revisions)
- Clarkia subsect. Jugales (2 revisions)
- Astragalus curvicarpus (2 revisions)
- Lotus tenuis (2 revisions)
- Galactia volubilis (2 revisions)
- Myriophyllum heterophyllum (2 revisions)
- Schizanthus (2 revisions)
- Funastrum clausum (2 revisions)
- Gentiana platypetala (2 revisions)
- Convolvulus (2 revisions)
- Trifolium parryi subsp. salictorum (2 revisions)
- Astragalus lentiginosus var. wahweapensis (2 revisions)
- Dalea emarginata (2 revisions)
- Astragalus cremnophylax (2 revisions)
- Astragalus cicer (2 revisions)
- Chamaecrista nictitans (2 revisions)
- Eremothera gouldii (2 revisions)
- Clarkia virgata (2 revisions)
- Astragalus californicus (2 revisions)
- Coursetia axillaris (2 revisions)
- Senna wislizeni (2 revisions)
- Elaeagnus umbellata (2 revisions)
- Solanum cordicitum (2 revisions)
- Matelea (2 revisions)
- Gentiana linearis (2 revisions)
- Volume 23 (2 revisions)
- Cycladenia humilis (2 revisions)
- Trifolium eriocephalum subsp. arcuatum (2 revisions)
- Astragalus lentiginosus var. coulteri (2 revisions)
- Dalea phleoides (2 revisions)
- Astragalus bernardinus (2 revisions)
- Astragalus desereticus (2 revisions)
- Lupinus albifrons var. collinus (2 revisions)
- Camissoniopsis pallida subsp. pallida (2 revisions)
- Clarkia purpurea subsp. purpurea (2 revisions)
- Astragalus ceramicus var. apus (2 revisions)
- Hoffmannseggia tenella (2 revisions)
- Clitoria ternatea var. ternatea (2 revisions)
- Ludwigia erecta (2 revisions)
- Solanum jamaicense (2 revisions)
- Matelea carolinensis (2 revisions)
- Hydrolea ovata (2 revisions)
- Ipomoea alba (2 revisions)
- Trifolium longipes subsp. pedunculatum (2 revisions)
- Astragalus tegetarioides var. tegetarioides (2 revisions)
- Astragalus nuttallianus (2 revisions)
- Astragalus newberryi (2 revisions)
- Lupinus argenteus var. argophyllus (2 revisions)
- Eulobus californicus (2 revisions)
- Clarkia biloba subsp. biloba (2 revisions)
- Astragalus kentrophyta var. ungulatus (2 revisions)
- Oxytropis oreophila (2 revisions)
- Rhynchosia edulis (2 revisions)
- Ludwigia hirtella (2 revisions)
- Solanum pumilum (2 revisions)
- Metastelma palmeri (2 revisions)
- Ipomoea pes-caprae subsp. brasiliensis (2 revisions)
- Ononis spinosa (2 revisions)
- Astragalus succumbens (2 revisions)
- Astragalus purshii var. purshii (2 revisions)
- Lupinus breweri var. bryoides (2 revisions)
- Astragalus sect. Ocreati (2 revisions)
- Lathyrus sphaericus (2 revisions)
- Chylismia claviformis (2 revisions)
- Astragalus montii (2 revisions)
- Oxytropis besseyi var. fallax (2 revisions)
- Cajanus cajan (2 revisions)
- Ludwigia pilosa (2 revisions)
- Solanum umbelliferum (2 revisions)
- Sphenoclea zeylanica (2 revisions)
- Ipomoea cardiophylla (2 revisions)
- Trigonella corniculata (2 revisions)
- Cuscuta coryli (2 revisions)
- Astragalus lemmonii (2 revisions)
- Desmanthus illinoensis (2 revisions)
- Lupinus formosus var. robustus (2 revisions)
- Astragalus bisulcatus var. nevadensis (2 revisions)
- Senegalia ×turneri (2 revisions)
- Chylismia scapoidea subsp. scapoidea (2 revisions)
- Gayophytum racemosum (2 revisions)
- Oxytropis campestris var. cusickii (2 revisions)
- Glycine (2 revisions)
- Dalea carnea var. gracilis (2 revisions)
- Circaea canadensis (2 revisions)
- Cuscuta boldinghii (2 revisions)
- Amsonia subg. Sphinctosiphon (2 revisions)
- Ipomoea longifolia (2 revisions)
- Medicago turbinata (2 revisions)
- Cuscuta howelliana (2 revisions)
- Astragalus didymocarpus var. didymocarpus (2 revisions)
- Astragalus missouriensis var. mimetes (2 revisions)
- Lupinus lepidus (2 revisions)
- Astragalus saurinus (2 revisions)
- Calliandra iselyi (2 revisions)
- Gunnera (2 revisions)
- Oxytropis lambertii var. bigelovii (2 revisions)
- Pediomelum pariense (2 revisions)
- Leptospron (2 revisions)
- Dalea tenuifolia (2 revisions)
- Epilobium rigidum (2 revisions)
- Browallia eludens (2 revisions)
- Zeltnera muehlenbergii (2 revisions)
- Vicia cracca var. cracca (2 revisions)
- Cuscuta pacifica (2 revisions)
- Astragalus barrii (2 revisions)
- Astragalus sect. Mollissimi (2 revisions)
- Lupinus longifolius (2 revisions)
- Astragalus misellus var. pauper (2 revisions)
- Samanea (2 revisions)
- Combretum (2 revisions)
- Polygala brevifolia (2 revisions)
- Astragalus sect. Astragalus (2 revisions)
- Pediomelum canescens (2 revisions)
- Phaseolus parvulus (2 revisions)
- Dalea versicolor (2 revisions)
- Epilobium sect. Pachydium (2 revisions)
- Chamaesaracha darcyi (2 revisions)
- Oenothera glaucifolia (2 revisions)
- Sabatia arenicola (2 revisions)
- Vicia ludoviciana var. ludoviciana (2 revisions)
- Thevetia peruviana (2 revisions)
- Sphaerophysa (2 revisions)
- Astragalus crassicarpus (2 revisions)
- Lupinus oreganus (2 revisions)
- Astragalus atratus var. inseptus (2 revisions)
- Cladrastis kentukea (2 revisions)
- Rhexia mariana var. mariana (2 revisions)
- Oenothera platanorum (2 revisions)
- Astragalus robbinsii var. occidentalis (2 revisions)
- Erythrostemon mexicanus (2 revisions)
- Macroptilium gibbosifolium (2 revisions)
- Dalea nana var. nana (2 revisions)
- Epilobium leptophyllum (2 revisions)
- Datura stramonium (2 revisions)
- Oenothera filipes (2 revisions)
- Sabatia gentianoides (2 revisions)
- Tamarindus indica (2 revisions)
- Evolvulus arenarius (2 revisions)
- Hedysarum boreale subsp. boreale (2 revisions)
- Astragalus oophorus var. oophorus (2 revisions)
- Lupinus sericeus (2 revisions)
- Astragalus pachypus (2 revisions)
- Maackia (2 revisions)
- Eucalyptus citriodora (2 revisions)
- Astragalus sect. Hemiphaca (2 revisions)
- Anthyllis vulneraria (2 revisions)
- Ornithopus (2 revisions)
- Lespedeza hirta subsp. curtissii (2 revisions)
- Senna obtusifolia (2 revisions)
- Lycianthes rantonnetii (2 revisions)
- Asclepias curassavica (2 revisions)
- Lomatogonium rotatum (2 revisions)
- Lathyrus brachycalyx (2 revisions)
- Vinca (2 revisions)
- Trifolium subterraneum (2 revisions)
- Astragalus tetrapterus (2 revisions)
- Cytisus scoparius (2 revisions)
- Astragalus cimae var. sufflatus (2 revisions)
- Thermopsis gracilis (2 revisions)
- Melaleuca (2 revisions)
- Astragalus flexuosus var. diehlii (2 revisions)
- Pomaria austrotexana (2 revisions)
- Desmodium cinerascens (2 revisions)
- Dalbergia (2 revisions)
- Lycium texanum (2 revisions)
- Asclepias cryptoceras subsp. davisii (2 revisions)
- Frasera albomarginata var. albomarginata (2 revisions)
- Lathyrus biflorus (2 revisions)
- Poranopsis (2 revisions)
- Trifolium fragiferum (2 revisions)
- Astragalus asymmetricus (2 revisions)
- Ulex europaeus (2 revisions)
- Astragalus arrectus (2 revisions)
- Baptisia australis (2 revisions)
- Luma (2 revisions)
- Cuphea aspera (2 revisions)
- Astragalus hallii var. fallax (2 revisions)
- Acmispon parviflorus (2 revisions)
- Desmodium metcalfei (2 revisions)
- Aeschynomene histrix (2 revisions)
- Oenothera organensis (2 revisions)
- Nicotiana clevelandii (2 revisions)
- Asclepias cinerea (2 revisions)
- Bartonia (2 revisions)
- Lathyrus nevadensis var. parkeri (2 revisions)
- Jacquemontia pentanthos (2 revisions)
- Trifolium siskiyouense (2 revisions)
- Astragalus magdalenae (2 revisions)
- Senna bauhinioides (2 revisions)
- Astragalus serenoi var. sordescens (2 revisions)
- Baptisia cinerea (2 revisions)
- Lythrum alatum (2 revisions)
- Astragalus miser var. decumbens (2 revisions)
- Acmispon glaber var. brevialatus (2 revisions)
- Tara spinosa (2 revisions)
- Indigofera oxycarpa (2 revisions)
- Oenothera glazioviana (2 revisions)
- Petunia integrifolia (2 revisions)
- Asclepias hallii (2 revisions)
- Gentianella amarella subsp. acuta (2 revisions)
- Lathyrus glandulosus (2 revisions)
- Calystegia malacophylla (2 revisions)
- Trifolium monanthum subsp. monanthum (2 revisions)
- Astragalus pardalinus (2 revisions)
- Eysenhardtia orthocarpa var. orthocarpa (2 revisions)
- Leucaena retusa (2 revisions)
- Crotalaria juncea (2 revisions)
- Punica (2 revisions)
- Epilobium ciliatum subsp. watsonii (2 revisions)
- Astragalus episcopus (2 revisions)
- Acmispon decumbens (2 revisions)
- Alysicarpus rugosus (2 revisions)
- Tephrosia (2 revisions)
- Oenothera mexicana (2 revisions)
- Glabra (2 revisions)
- Amsonia tabernaemontana (2 revisions)
- Gentianopsis crinita (2 revisions)
- Calystegia subacaulis subsp. episcopalis (2 revisions)
- Trifolium bifidum (2 revisions)
- Astragalus sparsiflorus var. majusculus (2 revisions)
- Psorothamnus scoparius (2 revisions)
- Astragalus crotalariae (2 revisions)
- Lupinus affinis (2 revisions)
- Camissonia kernensis subsp. kernensis (2 revisions)
- Clarkia pulchella (2 revisions)
- Astragalus chloödes (2 revisions)
- Hosackia crassifolia (2 revisions)
- Hoita macrostachya (2 revisions)
- Tephrosia hispidula (2 revisions)
- Haloragis erecta subsp. erecta (2 revisions)
- Physalis neomexicana (2 revisions)
- Asclepias tuberosa subsp. interior (2 revisions)
- Gentiana (2 revisions)
- Calystegia catesbeiana (2 revisions)
- Trifolium kentuckiense (2 revisions)
- Astragalus lentiginosus var. antonius (2 revisions)
- Marina diffusa var. diffusa (2 revisions)
- Astragalus distortus var. distortus (2 revisions)
- Astragalus canadensis (2 revisions)
- Lupinus malacophyllus (2 revisions)
- Camissonia integrifolia (2 revisions)
- Clarkia gracilis (2 revisions)
- Astragalus curvicarpus var. curvicarpus (2 revisions)
- Lotus uliginosus (2 revisions)
- Galactia longifolia (2 revisions)
- Myriophyllum hippuroides (2 revisions)
- Schizanthus pinnatus (2 revisions)
- Funastrum crispum (2 revisions)
- Gentiana sceptrum (2 revisions)
- Convolvulus simulans (2 revisions)
- Trifolium howellii (2 revisions)
- Astragalus lentiginosus var. diphysus (2 revisions)
- Dalea polygonoides (2 revisions)
- Astragalus cremnophylax var. cremnophylax (2 revisions)
- Astragalus sect. Argophylli (2 revisions)
- Lupinus sparsiflorus (2 revisions)
- Eremothera minor (2 revisions)
- Oenothera tubicula subsp. tubicula (2 revisions)
- Astragalus cusickii (2 revisions)
- Coursetia glabella (2 revisions)
- Galactia erecta (2 revisions)
- Oenothera sect. Calylophus (2 revisions)
- Solanum davisense (2 revisions)
- Matelea biflora (2 revisions)
- Gentiana rubricaulis (2 revisions)
- Aniseia (2 revisions)
- Tamarindus (2 revisions)
- Astragalus lentiginosus var. maricopae (2 revisions)
- Dalea phleoides var. phleoides (2 revisions)
- Astragalus emoryanus (2 revisions)
- Astragalus eurylobus (2 revisions)
- Lupinus albifrons var. douglasii (2 revisions)
- Oenothera macrocarpa subsp. macrocarpa (2 revisions)
- Clarkia purpurea subsp. viminea (2 revisions)
- Astragalus sect. Ervoidei (2 revisions)
- Oxytropis riparia (2 revisions)
- Clitoria ternatea var. pleniflora (2 revisions)
- Ludwigia sect. Macrocarpon (2 revisions)
- Solanum jamesii (2 revisions)
- Matelea flavidula (2 revisions)
- Hydrolea corymbosa (2 revisions)
- Ipomoea muricata (2 revisions)
- Trifolium longipes subsp. hansenii (2 revisions)
- Astragalus tegetarioides var. anxius (2 revisions)
- Astragalus nuttallianus var. nuttallianus (2 revisions)
- Astragalus newberryi var. newberryi (2 revisions)
- Chamaecrista nictitans var. leptadenia (2 revisions)
- Chylismia (2 revisions)
- Astragalus kentrophyta var. neomexicanus (2 revisions)
- Oxytropis oreophila var. oreophila (2 revisions)
- Cassia fistula (2 revisions)
- Ludwigia maritima (2 revisions)
- Solanum rostratum (2 revisions)
- Metastelma pringlei (2 revisions)
- Cycladenia humilis var. venusta (2 revisions)
- Ononis spinosa subsp. spinosa (2 revisions)
- Mimosa pigra var. pigra (2 revisions)
- Astragalus purshii var. tinctus (2 revisions)
- Lupinus breweri var. grandiflorus (2 revisions)
- Prosopis pubescens (2 revisions)
- Lathyrus nissolia (2 revisions)
- Chylismia claviformis subsp. claviformis (2 revisions)
- Clarkia cylindrica subsp. cylindrica (2 revisions)
- Astragalus sect. Humistrati (2 revisions)
- Hoffmannseggia glauca (2 revisions)
- Erythrina (2 revisions)
- Ludwigia ravenii (2 revisions)
- Solanum viarum (2 revisions)
- Gelsemiaceae (2 revisions)
- Ipomoea tricolor (2 revisions)
- Trigonella caerulea (2 revisions)
- Cuscuta cuspidata (2 revisions)
- Astragalus caricinus (2 revisions)
- Astragalus consobrinus (2 revisions)
- Lupinus fulcratus (2 revisions)
- Astragalus racemosus (2 revisions)
- Senegalia wrightii (2 revisions)
- Chylismia scapoidea subsp. macrocarpa (2 revisions)
- Gayophytum decipiens (2 revisions)
- Oxytropis campestris var. dispar (2 revisions)
- Glycine max (2 revisions)
- Dalea feayi (2 revisions)
- Circaea canadensis subsp. canadensis (2 revisions)
- Cuscuta brachycalyx (2 revisions)
- Mitreola petiolata (2 revisions)
- Ipomoea shumardiana (2 revisions)
- Medicago rigidula (2 revisions)
- Cuscuta indecora (2 revisions)
- Astragalus didymocarpus var. milesianus (2 revisions)
- Astragalus accumbens (2 revisions)
- Lupinus lepidus var. lepidus (2 revisions)
- Astragalus osterhoutii (2 revisions)
- Calliandra humilis (2 revisions)
- Gunnera tinctoria (2 revisions)
- Oxytropis kobukensis (2 revisions)
- Pediomelum humile (2 revisions)
- Leptospron adenanthum (2 revisions)
- Dalea pinnata (2 revisions)
- Distribution Abbreviations (2 revisions)
- Calibrachoa (2 revisions)
- Zeltnera davyi (2 revisions)
- Vicia cracca var. angustissima (2 revisions)
- Cuscuta pacifica var. pacifica (2 revisions)
- Astragalus sect. Orophaca (2 revisions)
- Desmanthus obtusus (2 revisions)
- Lupinus ludovicianus (2 revisions)
- Astragalus oniciformis (2 revisions)
- Samanea saman (2 revisions)
- Combretum indicum (2 revisions)
- Polygala chapmanii (2 revisions)
- Astragalus alpinus (2 revisions)
- Pediomelum piedmontanum (2 revisions)
- Phaseolus polystachios (2 revisions)
- Dalea versicolor var. sessilis (2 revisions)
- Epilobium densiflorum (2 revisions)
- Cyperus lupulinus subsp. lupulinus (2 revisions)
- Amsonia jonesii (2 revisions)
- Oenothera subsect. Schizocarya (2 revisions)
- Sabatia arkansana (2 revisions)
- Vicia ludoviciana var. leavenworthii (2 revisions)
- Cuscuta umbellata var. umbellata (2 revisions)
- Sphaerophysa salsula (2 revisions)
- Astragalus crassicarpus var. crassicarpus (2 revisions)
- Lupinus padrecrowleyi (2 revisions)
- Astragalus atratus var. owyheensis (2 revisions)
- Styphnolobium (2 revisions)
- Rhexia mariana var. exalbida (2 revisions)
- Polygala nuttallii (2 revisions)
- Astragalus robbinsii var. alpiniformis (2 revisions)
- Sesbania (2 revisions)
- Macroptilium lathyroides (2 revisions)
- Dalea nana var. carnescens (2 revisions)
- Epilobium densum (2 revisions)
- Datura wrightii (2 revisions)
- Oenothera sinuosa (2 revisions)
- Sabatia capitata (2 revisions)
- Vachellia choriophylla (2 revisions)
- Evolvulus nuttallianus (2 revisions)
- Hedysarum boreale subsp. mackenziei (2 revisions)
- Astragalus oophorus var. clokeyanus (2 revisions)
- Lupinus sierrae-blancae (2 revisions)
- Astragalus pachypus var. pachypus (2 revisions)
- Maackia buergeri (2 revisions)
- Eucalyptus cladocalyx (2 revisions)
- Astragalus williamsii (2 revisions)
- Astragalus sect. Strigulosi (2 revisions)
- Ornithopus sativus (2 revisions)
- Lespedeza leptostachya (2 revisions)
- Nissolia wislizeni (2 revisions)
- Lycium (2 revisions)
- Asclepias angustifolia (2 revisions)
- Lomatogonium rotatum var. rotatum (2 revisions)
- Lathyrus brachycalyx var. brachycalyx (2 revisions)
- Bonamia (2 revisions)
- Trifolium pratense (2 revisions)
- Astragalus pterocarpus (2 revisions)
- Cytisus multiflorus (2 revisions)
- Astragalus malacus (2 revisions)
- Thermopsis macrophylla (2 revisions)
- Melaleuca quinquenervia (2 revisions)
- Oenothera sect. Leucocoryne (2 revisions)
- Astragalus pictiformis (2 revisions)
- Acmispon argyraeus var. notitius (2 revisions)
- Desmodium cuspidatum (2 revisions)
- Dalbergia sissoo (2 revisions)
- Lycium ferocissimum (2 revisions)
- Asclepias humistrata (2 revisions)
- Frasera albomarginata var. induta (2 revisions)
- Vachellia farnesiana (2 revisions)
- Poranopsis paniculata (2 revisions)
- Trifolium resupinatum (2 revisions)
- Astragalus trichopodus (2 revisions)
- Parryella (2 revisions)
- Astragalus atropubescens (2 revisions)
- Baptisia australis var. australis (2 revisions)
- Luma apiculata (2 revisions)
- Cuphea carthagenensis (2 revisions)
- Astragalus puniceus (2 revisions)
- Acmispon americanus (2 revisions)
- Desmodium nuttallii (2 revisions)
- Senna pendula (2 revisions)
- Nicotiana glauca (2 revisions)
- Asclepias viridula (2 revisions)
- Bartonia virginica (2 revisions)
- Lathyrus nevadensis var. cusickii (2 revisions)
- Angadenia (2 revisions)
- Trifolium mucronatum (2 revisions)
- Astragalus magdalenae var. peirsonii (2 revisions)
- Amorpha roemeriana (2 revisions)
- Astragalus sect. Conjuncti (2 revisions)
- Baptisia lecontei (2 revisions)
- Lythrum alatum var. alatum (2 revisions)
- Astragalus miser var. crispatus (2 revisions)
- Pomaria brachycarpa (2 revisions)
- Desmodium scorpiurus (2 revisions)
- Indigofera tinctoria (2 revisions)
- Oenothera argillicola (2 revisions)
- Petunia ×atkinsiana (2 revisions)
- Asclepias viridiflora (2 revisions)
- Rhabdadenia (2 revisions)
- Lathyrus torreyi (2 revisions)
- Calystegia malacophylla subsp. malacophylla (2 revisions)
- Trifolium monanthum subsp. grantianum (2 revisions)
- Astragalus sabulonum (2 revisions)
- Psorothamnus (2 revisions)
- Astragalus porrectus (2 revisions)
- Crotalaria verrucosa (2 revisions)
- Punica granatum (2 revisions)
- Epilobium glaberrimum (2 revisions)
- Astragalus lancearius (2 revisions)
- Acmispon decumbens var. decumbens (2 revisions)
- Alysicarpus ovalifolius (2 revisions)
- Tephrosia lindheimeri (2 revisions)
- Oenothera laciniata (2 revisions)
- Physalis fendleri (2 revisions)
- Asclepias ruthiae (2 revisions)
- Gentianopsis virgata (2 revisions)
- Calystegia macrostegia (2 revisions)
- Trifolium oliganthum (2 revisions)
- Astragalus diaphanus (2 revisions)
- Senna durangensis (2 revisions)
- Astragalus beathii (2 revisions)
- Lupinus arizonicus (2 revisions)
- Camissonia kernensis subsp. gilmanii (2 revisions)
- Clarkia sect. Rhodanthos (2 revisions)
- Astragalus drabelliformis (2 revisions)
- Hosackia crassifolia var. crassifolia (2 revisions)
- Guilandina major (2 revisions)
- Tephrosia tenella (2 revisions)
- Physalis philadelphica (2 revisions)
- Asclepias tuberosa subsp. rolfsii (2 revisions)
- Gentiana nivalis (2 revisions)
- Calystegia catesbeiana subsp. catesbeiana (2 revisions)
- Trifolium bejariense (2 revisions)
- Astragalus lentiginosus var. albifolius (2 revisions)
- Dalea (2 revisions)
- Astragalus distortus var. engelmannii (2 revisions)
- Desmanthus (2 revisions)
- Lupinus microcarpus (2 revisions)
- Camissonia contorta (2 revisions)
- Clarkia gracilis subsp. gracilis (2 revisions)
- Prosopis (2 revisions)
- Lotus krylovii (2 revisions)
- Galactia striata (2 revisions)
- Proserpinaca (2 revisions)
- Solanum (2 revisions)
- Amsonia tabernaemontana var. repens (2 revisions)
- Gentiana affinis (2 revisions)
- Convolvulus arvensis (2 revisions)
- Trifolium macilentum (2 revisions)
- Mimosa emoryana var. emoryana (2 revisions)
- Dalea leporina (2 revisions)
- Astragalus cremnophylax var. hevronii (2 revisions)
- Astragalus argophyllus (2 revisions)
- Lupinus spectabilis (2 revisions)
- Clarkia australis (2 revisions)
- Astragalus cusickii var. cusickii (2 revisions)
- Coursetia caribaea (2 revisions)
- Galactia pinetorum (2 revisions)
- Shepherdia (2 revisions)
- Haplophyton crooksii (2 revisions)
- Matelea cynanchoides (2 revisions)
- Gentiana flavida (2 revisions)
- Aniseia martinicensis (2 revisions)
- Acacia mearnsii (2 revisions)
- Astragalus lentiginosus var. palans (2 revisions)
- Dalea phleoides var. microphylla (2 revisions)
- Astragalus emoryanus var. emoryanus (2 revisions)
- Astragalus tephrodes (2 revisions)
- Lupinus albifrons var. hallii (2 revisions)
- Camissoniopsis pallida subsp. hallii (2 revisions)
- Clarkia purpurea subsp. quadrivulnera (2 revisions)
- Astragalus multiflorus (2 revisions)
- Oxytropis deflexa (2 revisions)
- Centrosema (2 revisions)
- Ludwigia octovalvis (2 revisions)
- Solanum laciniatum (2 revisions)
- Matelea floridana (2 revisions)
- Hydrolea spinosa (2 revisions)
- Ipomoea setosa (2 revisions)
- Trifolium longipes subsp. elmeri (2 revisions)
- Astragalus tiehmii (2 revisions)
- Astragalus nuttallianus var. micranthiformis (2 revisions)
- Astragalus newberryi var. castoreus (2 revisions)
- Lupinus argenteus var. fulvomaculatus (2 revisions)
- Clarkia biloba subsp. australis (2 revisions)
- Astragalus kentrophyta var. elatus (2 revisions)
- Oxytropis oreophila var. juniperina (2 revisions)
- Rhynchosia minima (2 revisions)
- Oenothera capillifolia subsp. capillifolia (2 revisions)
- Solanum sarrachoides (2 revisions)
- Orthosia (2 revisions)
- Ipomoea carnea (2 revisions)
- Ononis spinosa subsp. maritima (2 revisions)
- Astragalus sect. Scaposi (2 revisions)
- Astragalus purshii var. glareosus (2 revisions)
- Lupinus cervinus (2 revisions)
- Astragalus flavus (2 revisions)
- Pisum (2 revisions)
- Oenothera macrocarpa subsp. fremontii (2 revisions)
- Clarkia cylindrica subsp. clavicarpa (2 revisions)
- Astragalus humistratus (2 revisions)
- Oxytropis besseyi var. obnapiformis (2 revisions)
- Erythrina herbacea (2 revisions)
- Ludwigia sphaerocarpa (2 revisions)
- Solanum wallacei (2 revisions)
- Gelsemium (2 revisions)
- Ipomoea dumetorum (2 revisions)
- Trigonella procumbens (2 revisions)
- Cuscuta dentatasquamata (2 revisions)
- Astragalus lentiformis (2 revisions)
- Astragalus chamaeleuce (2 revisions)
- Chamaecrista rotundifolia (2 revisions)
- Astragalus racemosus var. racemosus (2 revisions)
- Acaciella (2 revisions)
- Chylismia scapoidea subsp. brachycarpa (2 revisions)
- Gayophytum ramosissimum (2 revisions)
- Oxytropis campestris var. davisii (2 revisions)
- Gleditsia (2 revisions)
- Dalea villosa (2 revisions)
- Circaea alpina (2 revisions)
- Cuscuta californica (2 revisions)
- Mitreola sessilifolia (2 revisions)
- Gentianaceae (2 revisions)
- Medicago truncatula (2 revisions)
- Cuscuta indecora var. indecora (2 revisions)
- Mimosa quadrivalvis (2 revisions)
- Astragalus anisus (2 revisions)
- Lupinus lepidus var. aridus (2 revisions)
- Prosopis strombulifera (2 revisions)
- Calliandra humilis var. humilis (2 revisions)
- Oenothera sect. Kneiffia (2 revisions)
- Oxytropis maydelliana (2 revisions)
- Pediomelum subacaule (2 revisions)
- Sigmoidotropis (2 revisions)
- Dalea pinnata var. pinnata (2 revisions)
- Epilobium brachycarpum (2 revisions)
- Calibrachoa parviflora (2 revisions)
- Zeltnera multicaulis (2 revisions)
- Vicia acutifolia (2 revisions)
- Cuscuta pacifica var. papillata (2 revisions)
- Astragalus gilviflorus (2 revisions)
- Astragalus mollissimus (2 revisions)
- Lupinus magnificus (2 revisions)
- Astragalus toquimanus (2 revisions)
- Albizia (2 revisions)
- Melastomataceae (2 revisions)
- Polygala crenata (2 revisions)
- Astragalus alpinus var. alpinus (2 revisions)
- Pediomelum aromaticum (2 revisions)
- Phaseolus ritensis (2 revisions)
- Dalea formosa (2 revisions)
- Epilobium pallidum (2 revisions)
- Cyperus lupulinus subsp. macilentus (2 revisions)
- Chamaesaracha coniodes (2 revisions)
- Pachysandra procumbens (2 revisions)
- Sabatia macrophylla (2 revisions)
- Vicia hassei (2 revisions)
- Cuscuta umbrosa (2 revisions)
- Mimosa rupertiana (2 revisions)
- Astragalus crassicarpus var. paysonii (2 revisions)
- Lupinus peirsonii (2 revisions)
- Astragalus salmonis (2 revisions)
- Styphnolobium affine (2 revisions)
- Rhexia ventricosa (2 revisions)
- Polygala polygama (2 revisions)
- Astragalus robbinsii var. jesupii (2 revisions)
- Sesbania vesicaria (2 revisions)
- Macroptilium supinum (2 revisions)
- Dalea aurea (2 revisions)
- Epilobium davuricum (2 revisions)
- Hunzikeria (2 revisions)
- Oenothera subsect. Xenogaura (2 revisions)
- Sabatia kennedyana (2 revisions)
- Vicia narbonensis (2 revisions)
- Dichondra (2 revisions)
- Hedysarum alpinum (2 revisions)
- Astragalus oophorus var. lonchocalyx (2 revisions)
- Lupinus sulphureus (2 revisions)
- Astragalus pachypus var. jaegeri (2 revisions)
- Chamaecrista chamaecristoides (2 revisions)
- Eucalyptus conferruminata (2 revisions)
- Astragalus altus (2 revisions)
- Ornithopus sativus subsp. sativus (2 revisions)
- Lespedeza procumbens (2 revisions)
- Nissolia platycalyx (2 revisions)
- Amsonia longiflora var. longiflora (2 revisions)
- Asclepias incarnata (2 revisions)
- Lomatogonium rotatum var. fontanum (2 revisions)
- Lathyrus brachycalyx var. zionis (2 revisions)
- Bonamia grandiflora (2 revisions)
- Mimosa texana var. texana (2 revisions)
- Astragalus sect. Anemophili (2 revisions)
- Cytisus striatus (2 revisions)
- Astragalus chamaemeniscus (2 revisions)
- Thermopsis mollis (2 revisions)
- Melaleuca linariifolia (2 revisions)
- Astragalus proximus (2 revisions)
- Acmispon plebeius (2 revisions)
- Desmodium floridanum (2 revisions)
- Dalbergia brownei (2 revisions)
- Oenothera deltoides (2 revisions)
- Lycium fremontii (2 revisions)
- Asclepias scaposa (2 revisions)
- Frasera coloradensis (2 revisions)
- Lathyrus hitchcockianus (2 revisions)
- Stictocardia (2 revisions)
- Trifolium tomentosum (2 revisions)
- Astragalus trichopodus var. trichopodus (2 revisions)
- Parryella filifolia (2 revisions)
- Astragalus remotus (2 revisions)
- Chamaecrista fasciculata (2 revisions)
- Mosiera (2 revisions)
- Cuphea glutinosa (2 revisions)
- Astragalus puniceus var. puniceus (2 revisions)
- Acmispon americanus var. americanus (2 revisions)
- Desmodium ochroleucum (2 revisions)
- Aeschynomene histrix var. incana (2 revisions)
- Oenothera cespitosa subsp. crinita (2 revisions)
- Nicotiana longiflora (2 revisions)
- Asclepias connivens (2 revisions)
- Bartonia paniculata (2 revisions)
- Lathyrus laetivirens (2 revisions)
- Calystegia (2 revisions)
- Trifolium mucronatum subsp. lacerum (2 revisions)
- Astragalus allochrous (2 revisions)
- Amorpha paniculata (2 revisions)
- Astragalus conjunctus (2 revisions)
- Baptisia calycosa (2 revisions)
- Oenothera sect. Paradoxus (2 revisions)
- Astragalus convallarius (2 revisions)
- Acmispon dendroideus (2 revisions)
- Desmodium sessilifolium (2 revisions)
- Indigofera lindheimeriana (2 revisions)
- Oenothera parviflora (2 revisions)
- Physalis (2 revisions)
- Asclepias lanuginosa (2 revisions)
- Gentianella heterosepala (2 revisions)
- Vachellia farnesiana var. pinetorum (2 revisions)
- Calystegia malacophylla subsp. pedicellata (2 revisions)
- Trifolium monanthum subsp. parvum (2 revisions)
- Astragalus nutans (2 revisions)
- Psorothamnus spinosus (2 revisions)
- Astragalus sect. Ampullarii (2 revisions)
- Crotalaria lanceolata (2 revisions)
- Rotala (2 revisions)
- Epilobium glaberrimum subsp. glaberrimum (2 revisions)
- Astragalus duchesnensis (2 revisions)
- Acmispon decumbens var. davidsonii (2 revisions)
- Alysicarpus vaginalis (2 revisions)
- Senna pumilio (2 revisions)
- Oenothera drummondii (2 revisions)
- Physalis grisea (2 revisions)
- Asclepias sanjuanensis (2 revisions)
- Gentianopsis virgata subsp. virgata (2 revisions)
- Calystegia macrostegia subsp. macrostegia (2 revisions)
- Trifolium ciliolatum (2 revisions)
- Astragalus hornii (2 revisions)
- Psorothamnus polydenius (2 revisions)
- Mimosa hystricina (2 revisions)
- Astragalus praelongus (2 revisions)
- Lupinus benthamii (2 revisions)
- Camissonia pusilla (2 revisions)
- Clarkia subsect. Primigenia (2 revisions)
- Astragalus simplicifolius (2 revisions)
- Hosackia crassifolia var. otayensis (2 revisions)
- Rupertia (2 revisions)
- Tephrosia angustissima (2 revisions)
- Myriophyllum tenellum (2 revisions)
- Physalis pubescens (2 revisions)
- Asclepias variegata (2 revisions)
- Thyrsanthella difformis (2 revisions)
- Calystegia catesbeiana subsp. sericata (2 revisions)
- Trifolium carolinianum (2 revisions)
- Astragalus lentiginosus var. sesquimetralis (2 revisions)
- Dalea neomexicana (2 revisions)
- Astragalus soxmaniorum (2 revisions)
- Astragalus canadensis var. canadensis (2 revisions)
- Lupinus microcarpus var. microcarpus (2 revisions)
- Clarkia gracilis subsp. sonomensis (2 revisions)
- Astragalus curvicarpus var. brachycodon (2 revisions)
- Lotus subbiflorus (2 revisions)
- Galactia fasciculata (2 revisions)
- Proserpinaca pectinata (2 revisions)
- Solanum americanum (2 revisions)
- Funastrum cynanchoides (2 revisions)
- Gentiana affinis var. affinis (2 revisions)
- Convolvulus equitans (2 revisions)
- Trifolium productum (2 revisions)
- Astragalus lentiginosus var. higginsii (2 revisions)
- Dalea exserta (2 revisions)
- Astragalus cremnophylax var. myriorrhaphis (2 revisions)
- Astragalus argophyllus var. argophyllus (2 revisions)
- Lupinus stiversii (2 revisions)
- Camissoniopsis cheiranthifolia (2 revisions)
- Clarkia rhomboidea (2 revisions)
- Astragalus cusickii var. flexilipes (2 revisions)
- Coursetia caribaea var. sericea (2 revisions)
- Galactia grisebachii (2 revisions)
- Shepherdia argentea (2 revisions)
- Solanum deflexum (2 revisions)
- Matelea pubiflora (2 revisions)
- Gentiana villosa (2 revisions)
- Ipomoea (2 revisions)
- Trifolium eriocephalum subsp. martinii (2 revisions)
- Astragalus lentiginosus var. mokiacensis (2 revisions)
- Dalea foliosa (2 revisions)
- Astragalus emoryanus var. terlinguensis (2 revisions)
- Astragalus tephrodes var. tephrodes (2 revisions)
- Lupinus albifrons var. johnstonii (2 revisions)
- Camissoniopsis confusa (2 revisions)
- Clarkia sect. Biortis (2 revisions)
- Prosopis glandulosa var. prostrata (2 revisions)
- Oxytropis deflexa var. pulcherrima (2 revisions)
- Centrosema arenicola (2 revisions)
- Ludwigia bonariensis (2 revisions)
- Solanum lanceolatum (2 revisions)
- Matelea alabamensis (2 revisions)
- Hydrolea spinosa var. spinosa (2 revisions)
- Ipomoea violacea (2 revisions)
- Trifolium longipes subsp. pygmaeum (2 revisions)
- Astragalus nuttallianus var. macilentus (2 revisions)
- Astragalus newberryi var. blyae (2 revisions)
- Lupinus argenteus var. heteranthus (2 revisions)
- Chylismia brevipes (2 revisions)
- Oenothera acutissima (2 revisions)
- Astragalus kentrophyta var. coloradoensis (2 revisions)
- Oxytropis oreophila var. jonesii (2 revisions)
- Rhynchosia texana (2 revisions)
- Ludwigia virgata (2 revisions)
- Plumeria (2 revisions)
- Orthosia scoparia (2 revisions)
- Ipomoea carnea subsp. fistulosa (2 revisions)
- Acacia pycnantha (2 revisions)
- Astragalus calycosus (2 revisions)
- Astragalus purshii var. pumilio (2 revisions)
- Lupinus chamissonis (2 revisions)
- Astragalus flavus var. flavus (2 revisions)
- Pisum sativum (2 revisions)
- Chylismia claviformis subsp. aurantiaca (2 revisions)
- Clarkia rostrata (2 revisions)
- Astragalus humistratus var. humistratus (2 revisions)
- Oxytropis borealis (2 revisions)
- Erythrina flabelliformis (2 revisions)
- Ludwigia arcuata (2 revisions)
- Convolvulaceae (2 revisions)
- Gelsemium rankinii (2 revisions)
- Ipomoea sagittata (2 revisions)
- Medicago (2 revisions)
- Tabernaemontana (2 revisions)
- Astragalus andersonii (2 revisions)
- Astragalus laccoliticus (2 revisions)
- Lupinus gracilentus (2 revisions)
- Astragalus racemosus var. treleasei (2 revisions)
- Acaciella angustissima (2 revisions)
- Chylismia scapoidea subsp. utahensis (2 revisions)
- Gayophytum eriospermum (2 revisions)
- Oxytropis campestris var. columbiana (2 revisions)
- Dipogon (2 revisions)
- Dalea villosa var. villosa (2 revisions)
- Oenothera serrulata (2 revisions)
- Cuscuta californica var. californica (2 revisions)
- Mitreola angustifolia (2 revisions)
- Mandevilla (2 revisions)
- Medicago arabica (2 revisions)
- Cuscuta indecora var. longisepala (2 revisions)
- Astragalus didymocarpus var. dispermus (2 revisions)
- Astragalus sect. Desperati (2 revisions)
- Lupinus lepidus var. ashlandensis (2 revisions)
- Astragalus sect. Woodruffiani (2 revisions)
- Calliandra humilis var. reticulata (2 revisions)
- Hebecarpa obscura (2 revisions)
- Peltophorum pterocarpum (2 revisions)
- Pediomelum esculentum (2 revisions)
- Sigmoidotropis antillana (2 revisions)
- Dalea pinnata var. trifoliata (2 revisions)
- Utah State University (2 revisions)
- Calliphysalis (2 revisions)
- Zeltnera calycosa (2 revisions)
- Vicia caroliniana (2 revisions)
- Cuscuta pentagona (2 revisions)
- Astragalus gilviflorus var. gilviflorus (2 revisions)
- Astragalus mollissimus var. mollissimus (2 revisions)
- Chamaecrista serpens var. serpens (2 revisions)
- Astragalus sect. Neviniani (2 revisions)
- Chamaecrista absus var. meonandra (2 revisions)
- Polygala cruciata (2 revisions)
- Astragalus alpinus var. brunetianus (2 revisions)
- Pediomelum cuspidatum (2 revisions)
- Ceratonia (2 revisions)
- Dalea carthagenensis (2 revisions)
- Epilobium torreyi (2 revisions)
- Carex brunnescens subsp. brunnescens (2 revisions)
- Chamaesaracha crenata (2 revisions)
- Oenothera curtiflora (2 revisions)
- Sabatia macrophylla var. macrophylla (2 revisions)
- Vicia americana (2 revisions)
- Cuscuta warneri (2 revisions)
- Galega (2 revisions)
- Astragalus crassicarpus var. cavus (2 revisions)
- Lupinus perennis (2 revisions)
- Neptunia (2 revisions)
- Styphnolobium japonicum (2 revisions)
- Pachysandra (2 revisions)
- Polygala ramosa (2 revisions)
- Astragalus robbinsii var. fernaldii (2 revisions)
- Sesbania virgata (2 revisions)
- Kummerowia (2 revisions)
- Dalea wrightii (2 revisions)
- Epilobium arcticum (2 revisions)
- Hunzikeria texana (2 revisions)
- Oenothera hispida (2 revisions)
- Sabatia dodecandra (2 revisions)
- Vicia lutea (2 revisions)
- Dichondra occidentalis (2 revisions)
- Hedysarum sulphurescens (2 revisions)
- Desmanthus virgatus (2 revisions)
- Lupinus sulphureus var. sulphureus (2 revisions)
- Astragalus sect. Drummondiani (2 revisions)
- Brongniartia (2 revisions)
- Eucalyptus coolabah (2 revisions)
- Astragalus recurvus (2 revisions)
- Ornithopus perpusillus (2 revisions)
- Lespedeza repens (2 revisions)
- Nissolia schottii (2 revisions)
- Lycium shockleyi (2 revisions)
- Asclepias incarnata subsp. incarnata (2 revisions)
- Swertia (2 revisions)
- Lathyrus grimesii (2 revisions)
- Bonamia ovalifolia (2 revisions)
- Trifolium medium (2 revisions)
- Astragalus miguelensis (2 revisions)
- Cytisus proliferus (2 revisions)
- Astragalus holmgreniorum (2 revisions)
- Thermopsis montana (2 revisions)
- Rhinotropis rimulicola var. rimulicola (2 revisions)
- Astragalus fucatus (2 revisions)
- Acmispon utahensis (2 revisions)
- Desmodium grahamii (2 revisions)
- Dalbergia ecastaphyllum (2 revisions)
- Oenothera deltoides subsp. deltoides (2 revisions)
- Lycium exsertum (2 revisions)
- Asclepias californica (2 revisions)
- Frasera parryi (2 revisions)
- Lathyrus venosus (2 revisions)
- Stictocardia tiliifolia (2 revisions)
- Trifolium repens (2 revisions)
- Mimosa (2 revisions)
- Amorpha (2 revisions)
- Astragalus eremiticus (2 revisions)
- Baptisia australis var. minor (2 revisions)
- Mosiera longipes (2 revisions)
- Cuphea strigulosa (2 revisions)
- Astragalus puniceus var. gertrudis (2 revisions)
- Acmispon americanus var. helleri (2 revisions)
- Desmodium paniculatum (2 revisions)
- Aeschynomene fluitans (2 revisions)
- Oenothera elata (2 revisions)
- Amsonia peeblesii (2 revisions)
- Asclepias pedicellata (2 revisions)
- Bartonia paniculata subsp. paniculata (2 revisions)
- Lathyrus brownii (2 revisions)
- Calystegia longipes (2 revisions)
- Acacia auriculiformis (2 revisions)
- Astragalus wootonii (2 revisions)
- Amorpha schwerinii (2 revisions)
- Astragalus conjunctus var. conjunctus (2 revisions)
- Baptisia hirsuta (2 revisions)
- Lythrum alatum var. lanceolatum (2 revisions)
- Astragalus convallarius var. convallarius (2 revisions)
- Acmispon dendroideus var. dendroideus (2 revisions)
- Desmodium strictum (2 revisions)
- Indigofera suffruticosa (2 revisions)
- Oenothera oakesiana (2 revisions)
- Physalis acutifolia (2 revisions)
- Asclepias stenophylla (2 revisions)
- Gentianella heterosepala subsp. heterosepala (2 revisions)
- Lathyrus littoralis (2 revisions)
- Calystegia pubescens (2 revisions)
- Trifolium monanthum subsp. tenerum (2 revisions)
- Astragalus gilmanii (2 revisions)
- Psorothamnus kingii (2 revisions)
- Astragalus ampullarius (2 revisions)
- Chamaecrista greggii (2 revisions)
- Rotala indica (2 revisions)
- Epilobium glaberrimum subsp. fastigiatum (2 revisions)
- Astragalus nidularius (2 revisions)
- Acmispon argophyllus (2 revisions)
- Orbexilum (2 revisions)
- Tephrosia potosina (2 revisions)
- Oenothera cespitosa subsp. navajoensis (2 revisions)
- Physalis hederifolia (2 revisions)
- Asclepias uncialis (2 revisions)
- Gentianopsis virgata subsp. victorinii (2 revisions)
- Apocynum androsaemifolium (2 revisions)
- Trifolium palmeri (2 revisions)
- Astragalus hornii var. hornii (2 revisions)
- Psorothamnus polydenius var. polydenius (2 revisions)
- Astragalus pulsiferae (2 revisions)
- Astragalus praelongus var. praelongus (2 revisions)
- Lupinus bicolor (2 revisions)
- Oenothera brachycarpa (2 revisions)
- Clarkia amoena (2 revisions)
- Astragalus detritalis (2 revisions)
- Hoffmannseggia microphylla (2 revisions)
- Rupertia hallii (2 revisions)
- Tephrosia curtissii (2 revisions)
- Myriophyllum farwellii (2 revisions)
- Physalis pumila (2 revisions)
- Asclepias purpurascens (2 revisions)
- Gentiana glauca (2 revisions)
- Calystegia sepium (2 revisions)
- Trifolium amphianthum (2 revisions)
- Astragalus lentiginosus var. piscinensis (2 revisions)
- Dalea neomexicana var. neomexicana (2 revisions)
- Astragalus obcordatus (2 revisions)
- Astragalus canadensis var. mortonii (2 revisions)
- Lupinus microcarpus var. densiflorus (2 revisions)
- Eremothera refracta (2 revisions)
- Clarkia gracilis subsp. tracyi (2 revisions)
- Astragalus curvicarpus var. subglaber (2 revisions)
- Gliricidia (2 revisions)
- Senna surattensis (2 revisions)
- Proserpinaca palustris (2 revisions)
- Solanum aviculare (2 revisions)
- Funastrum heterophyllum (2 revisions)
- Gentiana affinis var. ovata (2 revisions)
- Convolvulus crenatifolius (2 revisions)
- Trifolium dedeckerae (2 revisions)
- Astragalus lentiginosus var. australis (2 revisions)
- Senna hirsuta (2 revisions)
- Mimosa microphylla (2 revisions)
- Astragalus argophyllus var. martini (2 revisions)
- Lupinus subcarnosus (2 revisions)
- Camissoniopsis cheiranthifolia subsp. cheiranthifolia (2 revisions)
- Clarkia sect. Godetia (2 revisions)
- Astragalus cusickii var. packardiae (2 revisions)
- Peteria (2 revisions)
- Galactia elliottii (2 revisions)
- Shepherdia canadensis (2 revisions)
- Solanum dimidiatum (2 revisions)
- Matelea parviflora (2 revisions)
- Cryptostegia (2 revisions)
- Volume 27 (2 revisions)
- Ipomoea microdactyla (2 revisions)
- Trifolium douglasii (2 revisions)
- Astragalus lentiginosus var. trumbullensis (2 revisions)
- Dalea candida (2 revisions)
- Astragalus acutirostris (2 revisions)
- Desmanthus brevipes (2 revisions)
- Lupinus albifrons var. medius (2 revisions)
- Camissoniopsis intermedia (2 revisions)
- Clarkia affinis (2 revisions)
- Astragalus vexilliflexus (2 revisions)
- Oxytropis deflexa var. foliolosa (2 revisions)
- Centrosema virginianum (2 revisions)
- Ludwigia sect. Seminudae (2 revisions)
- Solanum lumholtzianum (2 revisions)
- Amsonia arenaria (2 revisions)
- Amsonia ciliata (2 revisions)
- Ipomoea indica (2 revisions)
- Trifolium longipes subsp. oreganum (2 revisions)
- Astragalus nuttallianus var. pleianthus (2 revisions)
- Astragalus newberryi var. aquarii (2 revisions)
- Lupinus argenteus var. hillii (2 revisions)
- Chylismia brevipes subsp. brevipes (2 revisions)
- Clarkia lingulata (2 revisions)
- Astragalus sect. Polares (2 revisions)
- Oxytropis parryi (2 revisions)
- Rhynchosia swartzii (2 revisions)
- Ludwigia sect. Isnardia (2 revisions)
- Solanum seaforthianum (2 revisions)
- Pattalias (2 revisions)
- Ipomoea leptophylla (2 revisions)
- Ononis spinosa subsp. hircina (2 revisions)
- Astragalus calycosus var. calycosus (2 revisions)
- Astragalus purshii var. ophiogenes (2 revisions)
- Lupinus constancei (2 revisions)
- Astragalus flavus var. higginsii (2 revisions)
- Pisum sativum subsp. sativum (2 revisions)
- Chylismia claviformis subsp. cruciformis (2 revisions)
- Clarkia subsect. Phaeostoma (2 revisions)
- Astragalus humistratus var. sonorae (2 revisions)
- Oxytropis borealis var. borealis (2 revisions)
- Cologania (2 revisions)
- Ludwigia spathulata (2 revisions)
- Cuscuta (2 revisions)
- Gelsemium sempervirens (2 revisions)
- Ipomoea tenuissima (2 revisions)
- Medicago sect. Medicago (2 revisions)
- Cuscuta denticulata (2 revisions)
- Astragalus sepultipes (2 revisions)
- Astragalus piscator (2 revisions)
- Lupinus grayi (2 revisions)
- Astragalus sect. Oocalyces (2 revisions)
- Acaciella angustissima var. angustissima (2 revisions)
- Chylismia parryi (2 revisions)
- Oenothera sect. Gauropsis (2 revisions)
- Oxytropis campestris var. wanapum (2 revisions)
- Dipogon lignosus (2 revisions)
- Dalea villosa var. grisea (2 revisions)
- Circaea alpina subsp. alpina (2 revisions)
- Rauvolfia tetraphylla (2 revisions)
- Strychnos (2 revisions)
- Centaurium (2 revisions)
- Acacia saligna (2 revisions)
- Cuscuta indecora var. attenuata (2 revisions)
- Astragalus didymocarpus var. obispensis (2 revisions)
- Astragalus desperatus (2 revisions)
- Lupinus lepidus var. confertus (2 revisions)
- Astragalus woodruffii (2 revisions)
- Calliandra biflora (2 revisions)
- Laguncularia (2 revisions)
- Oxytropis arctica (2 revisions)
- Pediomelum hypogaeum (2 revisions)
- Sigmoidotropis speciosa (2 revisions)
- Senna marilandica (2 revisions)
- Smithsonian Institution (2 revisions)
- Calliphysalis carpenteri (2 revisions)
- Psidium cattleyanum (2 revisions)
- Zeltnera arizonica (2 revisions)
- Vicia pulchella (2 revisions)
- Cuscuta plattensis (2 revisions)
- Astragalus gilviflorus var. purpureus (2 revisions)
- Astragalus mollissimus var. coryi (2 revisions)
- Lupinus magnificus var. magnificus (2 revisions)
- Astragalus traskiae (2 revisions)
- Albizia julibrissin (2 revisions)
- Rhexia lutea (2 revisions)
- Polygala curtissii (2 revisions)
- Astragalus leptaleus (2 revisions)
- Pediomelum tenuiflorum (2 revisions)
- Phaseolus scabrellus (2 revisions)
- Dalea carthagenensis var. floridana (2 revisions)
- Grevillea robusta (2 revisions)
- Hymenocallis occidentalis var. eulae (2 revisions)
- Chamaesaracha villosa (2 revisions)
- Oenothera subsect. Xerogaura (2 revisions)
- Mandevilla lanuginosa (2 revisions)
- Vicia americana var. americana (2 revisions)
- Cuscuta subg. Monogynella (2 revisions)
- Galega officinalis (2 revisions)
- Astragalus crassicarpus var. berlandieri (2 revisions)
- Lupinus polyphyllus (2 revisions)
- Astragalus sect. Quinqueflori (2 revisions)
- Dermatophyllum (2 revisions)
- Oenothera fruticosa (2 revisions)
- Polygala rugelii (2 revisions)
- Parkinsonia microphylla (2 revisions)
- Sesbania punicea (2 revisions)
- Kummerowia stipulacea (2 revisions)
- Dalea hallii (2 revisions)
- Epilobium oregonense (2 revisions)
- Linda A. Vorobick (2 revisions)
- Hyoscyamus (2 revisions)
- Sabatia foliosa (2 revisions)
- Vicia pannonica (2 revisions)
- Dichondra argentea (2 revisions)
- Hedysarum occidentale (2 revisions)
- Astragalus oophorus var. lavinii (2 revisions)
- Lupinus sulphureus var. bingenensis (2 revisions)
- Astragalus drummondii (2 revisions)
- Brongniartia minutifolia (2 revisions)
- Eucalyptus globulus (2 revisions)
- Rhinotropis cornuta var. cornuta (2 revisions)
- Astragalus rusbyi (2 revisions)
- Ornithopus compressus (2 revisions)
- Caesalpinia pulcherrima (2 revisions)
- Chapmannia (2 revisions)
- Lycium cooperi (2 revisions)
- Asclepias incarnata subsp. pulchra (2 revisions)
- Nerium (2 revisions)
- Lathyrus palustris (2 revisions)
- Stylisma (2 revisions)
- Trifolium hirtum (2 revisions)
- Astragalus sect. Densifolii (2 revisions)
- Retama (2 revisions)
- Neptunia lutea (2 revisions)
- Thermopsis montana var. montana (2 revisions)
- Oenothera riparia (2 revisions)
- Parkinsonia texana var. texana (2 revisions)
- Acmispon wrightii (2 revisions)
- Desmodium gramineum (2 revisions)
- Aeschynomene (2 revisions)
- Oenothera deltoides subsp. howellii (2 revisions)
- Lycium chinense (2 revisions)
- Amsonia ciliata var. texana (2 revisions)
- Frasera neglecta (2 revisions)
- Lathyrus venosus var. venosus (2 revisions)
- Argyreia (2 revisions)
- Trifolium cernuum (2 revisions)
- Astragalus trichopodus var. lonchus (2 revisions)
- Amorpha californica (2 revisions)
- Astragalus eremiticus var. eremiticus (2 revisions)
- Baptisia megacarpa (2 revisions)
- Myrcianthes (2 revisions)
- Cuphea viscosissima (2 revisions)
- Astragalus castetteri (2 revisions)
- Acmispon denticulatus (2 revisions)
- Desmodium paniculatum var. paniculatum (2 revisions)
- Diphysa (2 revisions)
- Oenothera elata subsp. hirsutissima (2 revisions)
- Nicotiana obtusifolia (2 revisions)
- Asclepias curtissii (2 revisions)
- Bartonia paniculata subsp. iodandra (2 revisions)
- Lathyrus pauciflorus (2 revisions)
- Calystegia felix (2 revisions)
- Trifolium buckwestiorum (2 revisions)
- Astragalus wootonii var. wootonii (2 revisions)
- Amorpha glabra (2 revisions)
- Astragalus conjunctus var. rickardii (2 revisions)
- Crotalaria (2 revisions)
- Lythrum californicum (2 revisions)
- Astragalus convallarius var. finitimus (2 revisions)
- Acmispon dendroideus var. traskiae (2 revisions)
- Desmodium tenuifolium (2 revisions)
- Indigofera decora (2 revisions)
- Physalis angulata (2 revisions)
- Asclepias engelmanniana (2 revisions)
- Gentianella wrightii (2 revisions)
- Lathyrus pusillus (2 revisions)
- Calystegia collina (2 revisions)
- Trifolium pinetorum (2 revisions)
- Mimosa distachya (2 revisions)
- Psorothamnus schottii (2 revisions)
- Astragalus ampullarioides (2 revisions)
- Crotalaria lanceolata subsp. lanceolata (2 revisions)
- Rotala ramosior (2 revisions)
- Oenothera hartwegii subsp. pubescens (2 revisions)
- Astragalus harrisonii (2 revisions)
- Acmispon argophyllus var. argophyllus (2 revisions)
- Orbexilum virgatum (2 revisions)
- Tephrosia onobrychoides (2 revisions)
- Oenothera drummondii subsp. drummondii (2 revisions)
- Carissa macrocarpa (2 revisions)
- Asclepias amplexicaulis (2 revisions)
- Gentianopsis virgata subsp. macounii (2 revisions)
- Calystegia macrostegia subsp. amplissima (2 revisions)
- Acacia cyclops (2 revisions)
- Astragalus sect. Diphysi (2 revisions)
- Psorothamnus polydenius var. jonesii (2 revisions)
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