| Abelmoschus + | Malvenfam., + |
| Abelmoschus esculentus + | Methodus, + |
| Abies + | Gard. Dict. Abr., ed. 4 + |
| Abies amabilis + | Pinet. Woburn. + |
| Abies balsamea + | Gard. Dict., ed. 8 + |
| Abies bifolia + | Proc. Roy. Hort. Soc. London + |
| Abies bracteata + | Rev. Hort. + |
| Abies concolor + | Verh. Naturhist. Vereines Preuss. Rheinl. Westphalens + |
| Abies fraseri + | in Lamarck et al.,Encycl. + |
| Abies grandis + | Penny Cycl. + |
| Abies lasiocarpa + | N. Amer. Sylv. + |
| Abies lowiana + | Proc. Roy. Hort. Soc. London + |
| Abies magnifica + | Proc. Roy. Hort. Soc. London + |
| Abies procera + | Rhodora + |
| Abietinella + | Nuovo Giorn. Bot. Ital., n. s. + |
| Abietinella abietina + | Musc. Buitenzorg + |
| Abildgaardia + | Enum. Pl. + |
| Abildgaardia ovata + | Sida + |
| Abronia + | Gen. Pl., + |
| Abronia alpina + | Bot. Gaz. + |
| Abronia ameliae + | Wrightia + |
| Abronia ammophila + | Pittonia + |
| Abronia angustifolia + | Pittonia + |
| Abronia argillosa + | Great Basin Naturalist + |
| Abronia bigelovii + | Smithsonian Misc. Collect. + |
| Abronia bolackii + | Novon + |
| Abronia carletonii + | Bot. Gaz. + |
| Abronia elliptica + | Bull. Torrey Bot. Club + |
| Abronia fragrans + | Hooker’s J. Bot. Kew Gard. Misc. + |
| Abronia latifolia + | Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. + |
| Abronia macrocarpa + | Brittonia + |
| Abronia maritima + | in W. H. Brewer et al., Bot. California + |
| Abronia mellifera + | Bot. Mag. + |
| Abronia nana + | Proc. Amer. Acad. Arts. + |
| Abronia nana var. covillei + | Man. S. Calif. Bot., + |
| Abronia nana var. nana + | Proc. Amer. Acad. Arts. + |
| Abronia pogonantha + | Bot. Jahrb. Syst. + |
| Abronia turbinata + | Botany (Fortieth Parallel), + |
| Abronia umbellata + | Tabl. Encycl. + |
| Abronia umbellata var. acutalata + | Vasc. Pl. Pacific N. W. + |
| Abronia umbellata var. breviflora + | Sida + |
| Abronia umbellata var. umbellata + | Tabl. Encycl. + |
| Abronia villosa + | Amer. Naturalist + |
| Abronia villosa var. aurita + | Fl. Calif. + |
| Abronia villosa var. villosa + | Amer. Naturalist + |
| Abutilon + | Gard. Dict. Abr. ed. + |
| Abutilon abutiloides + | Annuaire Conserv. Jard. Bot. Genève + |
| Abutilon berlandieri + | Proc. Amer. Acad. Arts + |
| Abutilon coahuilae + | Madroño + |
| Abutilon fruticosum + | in J. B. A. Guillemin et al., Fl. Seneg. Tent. + |
| Abutilon hirtum + | Hort. Brit., + |
| Abutilon hulseanum + | J. Bot. + |
| Abutilon hypoleucum + | Smithsonian Contr. Knowl. + |
| Abutilon incanum + | Hort. Brit., + |
| Abutilon malacum + | Proc. Amer. Acad. Arts + |
| Abutilon mollicomum + | Hort. Brit., + |
| Abutilon palmeri + | Proc. Amer. Acad. Arts + |
| Abutilon parishii + | Proc. Amer. Acad. Arts + |
| Abutilon parvulum + | Smithsonian Contr. Knowl. + |
| Abutilon permolle + | Hort. Brit., + |
| Abutilon reventum + | Proc. Amer. Acad. Arts + |
| Abutilon theophrasti + | Malvenfam., + |
| Abutilon trisulcatum + | Repert. Spec. Nov. Regni Veg. + |
| Abutilon wrightii + | Boston J. Nat. Hist. + |
| Acaena + | Mant. Pl., + |
| Acaena novae-zelandiae + | Trans. & Proc. New Zealand Inst. + |
| Acaena pallida + | Fl. New Zealand + |
| Acaena pinnatifida + | Fl. Peruv. + |
| Acalypha + | Sp. Pl. + |
| Acalypha alopecuroidea + | Collectanea + |
| Acalypha arvensis + | Nov. Gen. Sp. Pl. + |
| Acalypha australis + | Sp. Pl. + |
| Acalypha californica + | Bot. Voy. Sulphur, + |
| Acalypha chamaedrifolia + | Prodr. + |
| Acalypha deamii + | Vasc. Pl. Illinois, + |
| Acalypha gracilens + | Manual, + |
| Acalypha monococca + | Sida + |
| Acalypha monostachya + | Anales Hist. Nat. + |
| Acalypha neomexicana + | Linnaea + |
| Acalypha ostryifolia + | Mem. Torrey Bot. Club + |
| Acalypha phleoides + | Anales Hist. Nat. + |
| Acalypha poiretii + | Syst. Veg. + |
| Acalypha radians + | Rep. U.S. Mex. Bound. + |
| Acalypha rhomboidea + | New Fl. + |
| Acalypha setosa + | Hist. Fis. Cuba + |
| Acalypha virginica + | Sp. Pl. + |
| Acalypha wilkesiana + | Prodr. + |
| Acamptopappus + | Proc. Amer. Acad. Arts + |
| Acamptopappus shockleyi + | Proc. Amer. Acad. Arts + |
| Acamptopappus sphaerocephalus + | Proc. Amer. Acad. Arts + |
| Acamptopappus sphaerocephalus var. hirtellus + | J. Wash. Acad. Sci. + |
| Acamptopappus sphaerocephalus var. sphaerocephalus + | Proc. Amer. Acad. Arts + |
| Acanthocereus + | Contr. U.S. Natl. Herb. + |
| Acanthocereus tetragonus + | Succulenta (Netherlands) + |
| Acanthoscyphus + | Bull. Torrey Bot. Club + |
| Acanthoscyphus parishii + | Bull. Torrey Bot. Club + |
| Acanthoscyphus parishii var. abramsii + | Harvard Pap. Bot. + |
| Acanthoscyphus parishii var. cienegensis + | Harvard Pap. Bot. + |
| Acanthoscyphus parishii var. goodmaniana + | Harvard Pap. Bot. + |
| Acanthoscyphus parishii var. parishii + | Bull. Torrey Bot. Club + |
| Acanthospermum + | Pl. Rar. Hort. Monac. + |
| Acanthospermum australe + | Revis. Gen. Pl. + |
| Acanthospermum hispidum + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Acanthospermum humile + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Acaulon + | Bot. Zeitung (Berlin) + |
| Acaulon muticum + | Bot. Zeitung (Berlin) + |
| Acaulon muticum var. muticum + | Bot. Zeitung (Berlin) + |
| Acaulon muticum var. rufescens + | Bryologist + |
| Acaulon schimperianum + | in W. S. Sullivant and C. L. Lesquereux, Musc. Bor.-Amer., sched. + |
| Acaulon triquetrum + | Bot. Zeitung (Berlin) + |
| Achillea + | Sp. Pl. +, Gen. Pl. ed. + |
| Achillea alpina + | Sp. Pl. + |
| Achillea millefolium + | Sp. Pl. + |
| Achillea nobilis + | Sp. Pl. + |
| Achillea ptarmica + | Sp. Pl. + |
| Achlys + | Syst. Nat. + |
| Achlys californica + | Taxon + |
| Achlys triphylla + | Syst. Nat. + |
| Achyrachaena + | Index Seminum (Bratislave) + |
| Achyrachaena mollis + | Index Seminum (Bratislava) + |
| Achyranthes + | Sp. Pl. +, Gen. Pl. ed. + |
| Achyranthes aspera + | Sp. Pl. + |
| Achyranthes aspera var. aspera + | Sp. Pl. + |
| Achyranthes aspera var. pubescens + | Kew Bull. + |
| Achyranthes japonica + | Bot. Mag. (Tokyo) + |
| Achyronychia + | Proc. Amer. Acad. Arts + |
| Achyronychia cooperi + | Proc. Amer. Acad. Arts + |
| Acleisanthes + | Amer. J. Sci. Arts, ser. + |
| Acleisanthes acutifolia + | Contr. U.S. Natl. Herb. + |
| Acleisanthes angustifolia + | Novon + |
| Acleisanthes anisophylla + | Amer. J. Sci. Arts, ser. + |
| Acleisanthes chenopodioides + | Novon + |
| Acleisanthes crassifolia + | Amer. J. Sci. Arts, ser. + |
| Acleisanthes diffusa + | Novon + |
| Acleisanthes lanceolata + | Novon + |
| Acleisanthes lanceolata var. lanceolata + | Novon + |
| Acleisanthes longiflora + | Amer. J. Sci. Arts, ser. + |
| Acleisanthes nevadensis + | in B. L. Turner et al., Atlas Vasc. Pl. Texas, + |
| Acleisanthes obtusa + | Contr. U.S. Natl. Herb. + |
| Acleisanthes parvifolia + | Novon + |
| Acleisanthes wrightii + | Biol. Cent.-Amer., Bot. + |
| Acmella + | in C. H. Persoon, Syn. Pl. + |
| Acmella pusilla + | Syst. Bot. Monogr. + |
| Acmella repens + | in C. H. Persoon, Syn. Pl. + |
| Acoelorraphe + | Bot. Zeitung (Berlin) + |
| Acoelorraphe wrightii + | Webbia + |
| Aconitum + | Sp. Pl. +, Gen. Pl. ed. + |
| Aconitum columbianum + | in J. Torrey & A. Gray, Fl. N. Amer. + |
| Aconitum columbianum subsp. columbianum + | in J. Torrey & A. Gray, Fl. N. Amer. + |
| Aconitum columbianum subsp. viviparum + | Sida + |
| Aconitum delphiniifolium + | Syst. Nat. + |
| Aconitum maximum + | Syst. Nat. + |
| Aconitum maximum subsp. maximum + | Syst. Nat. + |
| Aconitum reclinatum + | Amer. J. Sci. Arts + |
| Aconitum uncinatum + | Sp. Pl. ed. + |
| Aconogonon + | Handb. Nat. Pfl.-Syst., + |
| Aconogonon alaskanum + | Preslia + |
| Aconogonon alaskanum var. alaskanum + | Preslia + |
| Aconogonon alaskanum var. glabrescens + | Novon + |
| Aconogonon davisiae + | Preslia + |
| Aconogonon davisiae var. davisiae + | Preslia + |
| Aconogonon davisiae var. glabrum + | Rhodora + |
| Aconogonon phytolaccifolium + | in P. A. Rydberg, Fl. Rocky Mts., + |
| Aconogonon phytolaccifolium var. glabrum + | Rhodora + |
| Aconogonon phytolaccifolium var. phytolaccifolium + | in P. A. Rydberg, Fl. Rocky Mts., + |
| Acorus + | Sp. Pl. + |
| Acorus americanus + | New Flora and Botany of North America + |
| Acorus calamus + | Sp. Pl. + |
| Acourtia + | Trans. Linn. Soc. London + |
| Acourtia microcephala + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Acourtia nana + | Phytologia + |
| Acourtia runcinata + | Phytologia + |
| Acourtia thurberi + | Phytologia + |
| Acourtia wrightii + | Phytologia + |
| Acrocomia + | Palm. Fam. + |
| Acrocomia totai + | in A. D. d’Orbigny,Voyage dans l'Amérique Méridionale + |
| Acroporium + | J. Linn. Soc., Bot. + |
| Acroporium smallii + | Bryologist + |
| Acroptilon + | in F. Cuvier, Dict. Sci. Nat. ed. + |
| Acroptilon repens + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Acrostichum + | Sp. Pl. + |
| Acrostichum aureum + | Sp. Pl. + |
| Acrostichum danaeifolium + | Pl. Voy. Russes Monde + |
| Actaea + | Sp. Pl. +, Gen. Pl. ed. + |
| Actaea pachypoda + | Sketch. Bot. S. Carolina + |
| Actaea rubra + | Enum. Pl. + |
| Actinostachys + | Numer. List. + |
| Actinostachys pennula + | Gen. Fil. + |
| Adelia + | Syst. Nat. ed. + |
| Adelia vaseyi + | Pflanzenr. + |
| Adenocaulon + | Bot. Misc. + |
| Adenocaulon bicolor + | Bot. Misc. + |
| Adenophyllum + | Syn. Pl. + |
| Adenophyllum cooperi + | Sida + |
| Adenophyllum porophylloides + | Sida + |
| Adenophyllum wrightii + | Smithsonian Contr. Knowl. + |
| Adenophyllum wrightii var. wrightii + | Smithsonian Contr. Knowl. + |
| Adenostoma + | Bot. Beechey Voy., + |
| Adenostoma fasciculatum + | Bot. Beechey Voy., + |
| Adenostoma fasciculatum var. fasciculatum + | Bot. Beechey Voy., + |
| Adenostoma fasciculatum var. obtusifolium + | in W. H. Brewer et al., Bot. California + |
| Adenostoma fasciculatum var. prostratum + | Bull. S. Calif. Acad. Sci. + |
| Adenostoma sparsifolium + | in W. H. Emory, Not. Milit. Reconn., + |
| Adiantum + | Sp. Pl. + |
| Adiantum aleuticum + | Rhodora + |
| Adiantum capillus-veneris + | Sp. Pl. + |
| Adiantum hispidulum + | J. Bot. (Schrader) + |
| Adiantum jordanii + | Bot. Zeitung + |
| Adiantum melanoleucum + | Sp. Pl. + |
| Adiantum pedatum + | Sp. Pl. + |
| Adiantum tenerum + | Prodr. + |
| Adiantum tricholepis + | Sp. Pl. + |
| Adiantum viridimontanum + | Rhodora + |
| Adlumia + | Syst. Nat. + |
| Adlumia fungosa + | Sterns & Poggenberg, Prelim. Cat., + |
| Adolphia + | Pl. Vasc. Gen. + |
| Adolphia californica + | Proc. Amer. Acad. Arts + |
| Adolphia infesta + | Pl. Vasc. Gen. + |
| Adonis + | Sp. Pl. +, Gen. Pl. ed. + |
| Adonis aestivalis + | Sp. Pl. ed. + |
| Adonis annua + | Sp. Pl. + |
| Adonis vernalis + | Sp. Pl. + |
| Aeonium + | Hist. Nat. Îles Canaries + |
| Aeonium arboreum + | Hist. Nat. Îles Canaries + |
| Aeonium arboreum var. arboreum + | Hist. Nat. Îles Canaries + |
| Aeonium haworthii + | Hist. Nat. Îles Canaries + |
| Agalinis + | New Fl. + |
| Agalinis aphylla + | New Fl. + |
| Agalinis aspera + | Ill. Fl. N. U.S. ed. + |
| Agalinis auriculata + | Rhodora + |
| Agalinis caddoensis + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis calycina + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis decemloba + | Bull. Torrey Bot. Club + |
| Agalinis densiflora + | Rhodora + |
| Agalinis divaricata + | Bull. Torrey Bot. Club + |
| Agalinis edwardsiana + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis fasciculata + | New Fl. + |
| Agalinis filicaulis + | Bull. Torrey Bot. Club + |
| Agalinis filifolia + | New Fl. + |
| Agalinis flexicaulis + | J. Bot. Res. Inst. Texas + |
| Agalinis gattingeri + | Ill. Fl. N. U.S. ed. + |
| Agalinis georgiana + | Bull. Torrey Bot. Club + |
| Agalinis harperi + | Fl. Miami, + |
| Agalinis heterophylla + | Ill. Fl. N. U.S. ed. + |
| Agalinis homalantha + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis laxa + | Bull. Torrey Bot. Club + |
| Agalinis linifolia + | Fl. Miami, + |
| Agalinis maritima + | New Fl. + |
| Agalinis maritima var. grandiflora + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis maritima var. maritima + | New Fl. + |
| Agalinis navasotensis + | Sida + |
| Agalinis neoscotica + | Rhodora + |
| Agalinis obtusifolia + | New Fl. + |
| Agalinis oligophylla + | Bull. Torrey Bot. Club + |
| Agalinis plukenetii + | New Fl. + |
| Agalinis pulchella + | Bull. Torrey Bot. Club + |
| Agalinis purpurea + | Bull. Torrey Bot. Club + |
| Agalinis purpurea var. parviflora + | Phytologia + |
| Agalinis purpurea var. purpurea + | Bull. Torrey Bot. Club + |
| Agalinis setacea + | New Fl. + |
| Agalinis skinneriana + | Ill. Fl. N. U.S. ed. + |
| Agalinis strictifolia + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agalinis tenella + | Bull. Torrey Bot. Club + |
| Agalinis tenuifolia + | New Fl. + |
| Agalinis viridis + | Proc. Acad. Nat. Sci. Philadelphia + |
| Agarista + | Gen. Hist. + |
| Agarista populifolia + | J. Arnold Arbor. + |
| Agave + | Sp. Pl. +, Gen. Pl. ed. + |
| Agave americana + | Sp. Pl. + |
| Agave americana subsp. americana + | Sp. Pl. + |
| Agave americana subsp. protamericana + | Agaves Continental N. Amer., + |
| Agave americana var. americana + | Sp. Pl. + |
| Agave americana var. expansa + | Agave Fam. Sonora, + |
| Agave asperrima + | Hamburger Garten- Blumenzeitung + |
| Agave asperrima var. asperrima + | Hamburger Garten- Blumenzeitung + |
| Agave chrysantha + | Proc. Biol. Soc. Wash. + |
| Agave decipiens + | Bull. Misc. Inform. Kew + |
| Agave delamateri + | Haseltonia + |
| Agave deserti + | Trans. Acad. Sci. St. Louis + |
| Agave deserti var. deserti + | Trans. Acad. Sci. St. Louis + |
| Agave deserti var. simplex + | Novon + |
| Agave desmettiana + | Hamburger Garten- Blumenzeitung + |
| Agave gracilipes + | Rep. (Annual) Missouri Bot. Gard. + |
| Agave havardiana + | Rep. (Annual) Missouri Bot. Gard. + |
| Agave lechuguilla + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Agave mckelveyana + | Cact. Succ. J. (Los Angeles) + |
| Agave murpheyi + | Contr. Boyce Thompson Inst. Pl. Res. + |
| Agave neglecta + | Fl. S.E. U.S., + |
| Agave palmeri + | Trans. Acad. Sci. St. Louis + |
| Agave parryi + | Trans. Acad. Sci. St. Louis + |
| Agave parryi subsp. neomexicana + | Sida + |
| Agave parryi subsp. parryi + | Trans. Acad. Sci. St. Louis + |
| Agave parryi var. couesii + | J. Wash. Acad. Sci. + |
| Agave parryi var. huachucensis + | Amer. J. Bot. + |
| Agave parryi var. parryi + | Trans. Acad. Sci. St. Louis + |
| Agave parviflora + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Agave parviflora subsp. parviflora + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Agave phillipsiana + | Novon + |
| Agave schottii + | Trans. Acad. Sci. St. Louis + |
| Agave schottii var. schottii + | Trans. Acad. Sci. St. Louis + |
| Agave schottii var. treleasei + | J. Wash. Acad. Sci. + |
| Agave shawii + | Trans. Acad. Sci. St. Louis + |
| Agave shawii var. shawii + | Trans. Acad. Sci. St. Louis + |
| Agave sisalana + | Trop. Pl., + |
| Agave toumeyana + | Contr. U.S. Natl. Herb. + |
| Agave toumeyana var. bella + | Cact. Succ. J. (Los Angeles) + |
| Agave toumeyana var. toumeyana + | Contr. U.S. Natl. Herb. + |
| Agave univittata + | Philos. Mag. Ann. Chem. + |
| Agave utahensis + | Ann. Missouri Bot. Gard. + |
| Agave utahensis subsp. kaibabensis + | Agaves Continental N. Amer., + |
| Agave utahensis subsp. utahensis + | in S. Watson, Botany (Fortieth Parallel), + |
| Agave utahensis var. eborispina + | Cact. Succ. J. (Los Angeles) + |
| Agave utahensis var. utahensis + | Ann. Missouri Bot. Gard. + |
| Agave weberi + | Bull. Mus. Natl. Hist. Nat. + |
| Agave ×ajoensis + | Novon + |
| Agave ×arizonica + | Cact. Succ. J. (Los Angeles) + |
| Agave ×glomeruliflora + | Agaven, + |
| Agdestis + | Syst. Nat. + |
| Agdestis clematidea + | Syst. Nat. + |
| Ageratina + | Hist. Nat. Vég. + |
| Ageratina adenophora + | Phytologia + |
| Ageratina altissima + | Phytologia + |
| Ageratina altissima var. altissima + | Phytologia + |
| Ageratina altissima var. roanensis + | Brittonia + |
| Ageratina aromatica + | Hist. Nat. Vég. + |
| Ageratina havanensis + | Phytologia + |
| Ageratina herbacea + | Phytologia + |
| Ageratina jucunda + | Brittonia + |
| Ageratina lemmonii + | Phytologia + |
| Ageratina luciae-brauniae + | Phytologia + |
| Ageratina occidentalis + | Phytologia + |
| Ageratina paupercula + | Phytologia + |
| Ageratina rothrockii + | Phytologia + |
| Ageratina shastensis + | Phytologia + |
| Ageratina thyrsiflora + | Phytologia + |
| Ageratina wrightii + | Phytologia + |
| Ageratum + | Sp. Pl. +, Gen. Pl. ed. + |
| Ageratum conyzoides + | Sp. Pl. + |
| Ageratum corymbosum + | Cent. Observ. Bot., no. + |
| Ageratum houstonianum + | Gard. Dict. ed. + |
| Ageratum maritimum + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Agnorhiza + | Phytologia + |
| Agnorhiza bolanderi + | Phytologia + |
| Agnorhiza elata + | Phytologia + |
| Agnorhiza invenusta + | Phytologia + |
| Agnorhiza ovata + | Phytologia + |
| Agnorhiza reticulata + | Phytologia + |
| Agoseris + | Fl. Ludov., + |
| Agoseris apargioides + | Pittonia + |
| Agoseris apargioides var. apargioides + | Pittonia + |
| Agoseris apargioides var. eastwoodiae + | Aliso + |
| Agoseris apargioides var. maritima + | Sida + |
| Agoseris aurantiaca + | Pittonia + |
| Agoseris aurantiaca var. aurantiaca + | Pittonia + |
| Agoseris aurantiaca var. purpurea + | Rhodora + |
| Agoseris glauca + | Herb. Raf., + |
| Agoseris glauca var. dasycephala + | Man. Fl. Pl. Calif., + |
| Agoseris glauca var. glauca + | Herb. Raf., + |
| Agoseris grandiflora + | Pittonia + |
| Agoseris grandiflora var. grandiflora + | Pittonia + |
| Agoseris grandiflora var. leptophylla + | Sida + |
| Agoseris heterophylla + | Pittonia + |
| Agoseris heterophylla var. cryptopleura + | Pittonia + |
| Agoseris heterophylla var. heterophylla + | Pittonia + |
| Agoseris heterophylla var. quentinii + | Sida + |
| Agoseris hirsuta + | Pittonia + |
| Agoseris monticola + | Pittonia + |
| Agoseris parviflora + | Syn. Pl. + |
| Agoseris retrorsa + | Pittonia + |
| Agoseris ×elata + | Pittonia + |
| Agrimonia + | Sp. Pl. +, Gen. Pl. ed. + |
| Agrimonia gryposepala + | Beitr. Bot. + |
| Agrimonia incisa + | Fl. N. Amer., + |
| Agrimonia microcarpa + | Beitr. Bot. + |
| Agrimonia parviflora + | Hort. Kew. + |
| Agrimonia pubescens + | Beitr. Bot. + |
| Agrimonia rostellata + | Beitr. Bot. + |
| Agrimonia striata + | Fl. Bor.-Amer. + |
| Agrostemma + | Sp. Pl. +, Gen. Pl. ed. + |
| Agrostemma githago + | Sp. Pl. + |
| Agrostemma githago var. githago + | Sp. Pl. + |
| Akebia + | Arch. Mus. Hist. Nat. + |
| Akebia quinata + | Arch. Mus. Hist. Nat. + |
| Alcea + | Sp. Pl. +, Gen. Pl. ed. + |
| Alcea rosea + | Sp. Pl. + |
| Alcea rugosa + | Oesterr. Bot. Z. + |
| Alchemilla + | Sp. Pl. +, Gen. Pl. ed. + |
| Alchemilla alpina + | Sp. Pl. + |
| Alchemilla filicaulis + | Bull. Herb. Boissier + |
| Alchemilla filicaulis subsp. filicaulis + | Bull. Herb. Boissier + |
| Alchemilla filicaulis subsp. vestita + | Watsonia + |
| Alchemilla glabra + | Ench. Bot., + |
| Alchemilla glaucescens + | Linnaea + |
| Alchemilla glomerulans + | Bull. Herb. Boissier + |
| Alchemilla micans + | Bull. Herb. Boissier + |
| Alchemilla mollis + | Repert. Spec. Nov. Regni Veg. + |
| Alchemilla monticola + | in F. Berchtold et al., Oekon.-techn. Fl. Böhm. + |
| Alchemilla subcrenata + | Scrinia Fl. Select. + |
| Alchemilla venosa + | in A. A. Grossheim, Fl. Kavkaza + |
| Alchemilla wichurae + | Fl. Íslands, + |
| Alchemilla xanthochlora + | Repert. Spec. Nov. Regni Veg. + |
| Aletris + | Sp. Pl. +, Gen. Pl. ed. + |
| Aletris aurea + | Fl. Carol., + |
| Aletris bracteata + | Mem. Torrey Bot. Club + |
| Aletris farinosa + | Sp. Pl. + |
| Aletris lutea + | Bull. New York Bot. Gard. + |
| Aletris obovata + | in J. K. Small, Fl. S.E. U.S., + |
| Alisma + | Sp. Pl. + |
| Alisma gramineum + | Flore des Environs de Spa + |
| Alisma lanceolatum + | An Arrangement of British Plants (ed. 3) + |
| Alisma plantago-aquatica + | Sp. Pl. + |
| Alisma subcordatum + | Medical Repository + |
| Alisma triviale + | Flora Americae Septentrionalis + |
| Allenrolfea + | Revis. Gen. Pl. + |
| Allenrolfea occidentalis + | Revis. Gen. Pl. + |
| Alliaria + | Enum., + |
| Alliaria petiolata + | Bull. Orto Bot. Regia Univ. Napoli + |
| Allionia + | Syst. Nat. ed. + |
| Allionia choisyi + | Publ. Field Mus. Nat. Hist., Bot. Ser. + |
| Allionia incarnata + | Syst. Nat. ed. + |
| Allionia incarnata var. incarnata + | Syst. Nat. ed. + |
| Allionia incarnata var. villosa + | Man. S. Calif. Bot., + |
| Allium + | Sp. Pl. +, Gen. Pl. ed. + |
| Allium aaseae + | Res. Stud. State Coll. Wash. + |
| Allium abramsii + | Aliso + |
| Allium acuminatum + | Fl. Bor.-Amer. + |
| Allium ampeloprasum + | Sp. Pl. + |
| Allium amplectens + | Pacif. Railr. Rep. + |
| Allium anceps + | Proc. Calif. Acad. Sci. + |
| Allium atrorubens + | Botany (Fortieth Parallel), + |
| Allium atrorubens var. atrorubens + | Botany (Fortieth Parallel), + |
| Allium atrorubens var. cristatum + | Madroño + |
| Allium bigelovii + | Botany (Fortieth Parallel), + |
| Allium bisceptrum + | Botany (Fortieth Parallel), + |
| Allium bolanderi + | Proc. Amer. Acad. Arts + |
| Allium bolanderi var. bolanderi + | Proc. Amer. Acad. Arts + |
| Allium bolanderi var. mirabile + | Phytologia + |
| Allium brandegeei + | Proc. Amer. Acad. Arts + |
| Allium brevistylum + | Botany (Fortieth Parallel), + |
| Allium burlewii + | Bull. S. Calif. Acad. Sci. + |
| Allium campanulatum + | Proc. Amer. Acad. Arts + |
| Allium canadense + | Sp. Pl. + |
| Allium canadense var. canadense + | Sp. Pl. + |
| Allium canadense var. ecristatum + | Res. Stud. State Coll. Wash. + |
| Allium canadense var. fraseri + | Res. Stud. State Coll. Wash. + |
| Allium canadense var. hyacinthoides + | Res. Stud. State Coll. Wash. + |
| Allium canadense var. lavendulare + | Res. Stud. State Coll. Wash., suppl. + |
| Allium canadense var. mobilense + | Res. Stud. State Coll. Wash. + |
| Allium cepa + | Sp. Pl. + |
| Allium cernuum + | Arch. Bot. (Leipzig) + |
| Allium columbianum + | Syst. Bot. + |
| Allium constrictum + | Syst. Bot. + |
| Allium coryi + | Contr. W. Bot. + |
| Allium cratericola + | Leafl. W. Bot. + |
| Allium crenulatum + | Bull. Torrey Bot. Club + |
| Allium crispum + | Pittonia + |
| Allium cuthbertii + | Fl. S.E. U.S., + |
| Allium denticulatum + | Aliso + |
| Allium diabolense + | Aliso + |
| Allium dichlamydeum + | Pittonia + |
| Allium dictuon + | Proc. Biol. Soc. Wash. + |
| Allium douglasii + | Fl. Bor.-Amer. + |
| Allium drummondii + | Trudy Imp. S.-Peterburgsk. Bot. Sada + |
| Allium elmendorfii + | Res. Stud. State Coll. Wash. + |
| Allium falcifolium + | Bot. Beechey Voy., + |
| Allium fibrillum + | in L. Abrams and R. S. Ferris, Ill. Fl. Pacific States + |
| Allium fimbriatum + | Proc. Amer. Acad. Arts + |
| Allium fimbriatum var. fimbriatum + | Proc. Amer. Acad. Arts + |
| Allium fimbriatum var. mohavense + | Fl. Calif. + |
| Allium fimbriatum var. purdyi + | Aliso + |
| Allium fistulosum + | Sp. Pl. + |
| Allium geyeri + | Proc. Amer. Acad. Arts + |
| Allium geyeri var. geyeri + | Proc. Amer. Acad. Arts + |
| Allium geyeri var. tenerum + | Contr. W. Bot. + |
| Allium gooddingii + | Res. Stud. State Coll. Wash. + |
| Allium haematochiton + | Proc. Amer. Acad. Arts + |
| Allium hickmanii + | Bull. Torrey Bot. Club + |
| Allium hoffmanii + | Pl. Life + |
| Allium howellii + | Leafl. W. Bot. + |
| Allium howellii var. clokeyi + | Pl. Life + |
| Allium howellii var. howellii + | Leafl. W. Bot. + |
| Allium howellii var. sanbenitense + | in P. A. Munz, Calif. Fl., + |
| Allium hyalinum + | Bull. Calif. Acad. Sci. + |
| Allium jepsonii + | Madroño + |
| Allium kunthii + | Mem. Wern. Nat. Hist. Soc. + |
| Allium lacunosum + | Proc. Amer. Acad. Arts + |
| Allium lacunosum var. davisiae + | Madroño + |
| Allium lacunosum var. kernensis + | Madroño + |
| Allium lacunosum var. lacunosum + | Proc. Amer. Acad. Arts + |
| Allium lacunosum var. micranthum + | Leafl. W. Bot. + |
| Allium lemmonii + | Proc. Amer. Acad. Arts + |
| Allium macropetalum + | Bull. Torrey Bot. Club + |
| Allium macrum + | Proc. Amer. Acad. Arts + |
| Allium madidum + | Proc. Amer. Acad. Arts + |
| Allium membranaceum + | Pl. Life + |
| Allium monticola + | Bull. S. Calif. Acad. Sci. + |
| Allium munzii + | Aliso + |
| Allium neapolitanum + | Pl. Rar. Neapol. + |
| Allium nevadense + | Botany (Fortieth Parallel), + |
| Allium nevii + | Proc. Amer. Acad. Arts + |
| Allium nigrum + | Sp. Pl. ed. + |
| Allium obtusum + | Pittonia + |
| Allium obtusum var. conspicuum + | Aliso + |
| Allium obtusum var. obtusum + | Pittonia + |
| Allium oleraceum + | Sp. Pl. + |
| Allium paniculatum + | Syst. Nat., ed. + |
| Allium paniculatum var. paniculatum + | Syst. Nat., ed. + |
| Allium parishii + | Proc. Amer. Acad. Arts + |
| Allium parryi + | Proc. Amer. Acad. Arts + |
| Allium parvum + | Proc. Calif. Acad. Sci. + |
| Allium passeyi + | Brittonia + |
| Allium peninsulare + | Pittonia + |
| Allium peninsulare var. franciscanum + | Phytologia + |
| Allium peninsulare var. peninsulare + | Pittonia + |
| Allium perdulce + | Trans. Kansas Acad. Sci. + |
| Allium perdulce var. perdulce + | Trans. Kansas Acad. Sci. + |
| Allium perdulce var. sperryi + | Res. Stud. State Coll. Wash. + |
| Allium platycaule + | Proc. Amer. Acad. Arts + |
| Allium plummerae + | Proc. Amer. Acad. Arts + |
| Allium praecox + | Zoë + |
| Allium punctum + | Rhodora + |
| Allium rhizomatum + | Contr. U.S. Natl. Herb. + |
| Allium robinsonii + | Rhodora + |
| Allium rotundum + | Sp. Pl. ed. + |
| Allium runyonii + | Res. Stud. State Coll. Wash. + |
| Allium sanbornii + | Proc. Acad. Nat. Sci. Philadelphia + |
| Allium sanbornii var. congdonii + | Fl. Calif. + |
| Allium sanbornii var. sanbornii + | Proc. Acad. Nat. Sci. Philadelphia + |
| Allium sativum + | Sp. Pl. + |
| Allium sativum var. sativum + | Sp. Pl. + |
| Allium schoenoprasum + | Sp. Pl. + |
| Allium scilloides + | Proc. Amer. Acad. Arts + |
| Allium serra + | Madroño + |
| Allium sharsmithiae + | Aliso + |
| Allium shevockii + | Madroño + |
| Allium simillimum + | Bull. Torrey Bot. Club + |
| Allium siskiyouense + | Pl. Life + |
| Allium speculae + | Rhodora + |
| Allium stellatum + | Bot. Mag. + |
| Allium textile + | Bot. Gaz. + |
| Allium tolmiei + | Bot. Mag. + |
| Allium tolmiei var. persimile + | Res. Stud. State Coll. Wash. + |
| Allium tolmiei var. tolmiei + | Bot. Mag. + |
| Allium tribracteatum + | Pacif. Railr. Rep. + |
| Allium tricoccum + | in W. Aiton, Hort. Kew + |
| Allium tricoccum var. burdickii + | Rhodora + |
| Allium tricoccum var. tricoccum + | in W. Aiton, Hort. Kew + |
| Allium triquetrum + | Sp. Pl. + |
| Allium tuberosum + | Syst. Veg. + |
| Allium tuolumnense + | Madroño + |
| Allium unifolium + | Proc. Calif. Acad. Sci. + |
| Allium validum + | Botany (Fortieth Parallel), + |
| Allium victorialis + | Sp. Pl. + |
| Allium vineale + | Sp. Pl. + |
| Allium yosemitense + | Leafl. W. Bot. + |
| Allotropa + | in War Department [U.S.], Pacif. Railr. Rep. + |
| Allotropa virgata + | in War Department [U.S.], Pacif. Railr. Rep. + |
| Allowissadula + | Gentes Herbarum + |
| Allowissadula holosericea + | Gentes Herbarum + |
| Allowissadula lozanoi + | Gentes Herbarum + |
| Almutaster + | Taxon + |
| Almutaster pauciflorus + | Taxon + |
| Alnus + | Gard. Dict. Abr. ed. + |
| Alnus glutinosa + | Fruct. Sem. Pl. + |
| Alnus incana + | Methodus, + |
| Alnus incana subsp. rugosa + | Cornell Univ. Agric. Exp. Sta. Mem. + |
| Alnus incana subsp. tenuifolia + | Amer. Midl. Naturalist + |
| Alnus maritima + | N. Amer. Sylv. + |
| Alnus oblongifolia + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Alnus rhombifolia + | N. Amer. Sylv. + |
| Alnus rubra + | Mém. Acad. Sci. St.-Pétersbourg, Sér. + |
| Alnus serrulata + | Sp. Pl. + |
| Alnus viridis + | in J. Lamarck and A. P. de Candolle, Fl. Franç. ed. + |
| Alnus viridis subsp. crispa + | Bot. Mag. + |
| Alnus viridis subsp. fruticosa + | Consp. Fl. Eur., + |
| Alnus viridis subsp. sinuata + | Univ. Colorado Stud., Ser. Biol. + |
| Aloe + | Sp. Pl. +, Gen. Pl. ed. + |
| Aloe vera + | Fl. Indica, + |
| Aloe ×schonlandii + | Gard. Chron., ser. + |
| Aloina + | Bih. Kongl. Svenska Venensk.-Akad. Handl. + |
| Aloina aloides + | Bih. Kongl. Svensk. Vetensk.-Akad. Handl. + |
| Aloina aloides var. ambigua + | in A. J. Grout, Moss Fl. N. Amer. + |
| Aloina bifrons + | Bryologist + |
| Aloina brevirostris + | Bih. Kongl. Svenska Vetensk.-Akad. Handl. + |
| Aloina hamulus + | in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. + |
| Aloina rigida + | Laubm. Deutschl. + |
| Aloina rigida var. rigida + | Laubm. Deutschl. + |
| Alophia + | Bot. Mag. + |
| Alophia drummondii + | Contr. Gray Herb. + |
| Alpinia + | Asiatic Researches + |
| Alpinia zerumbet + | Notes from the Royal Botanic Garden, Edinburgh + |
| Alsia + | Proc. Amer. Acad. Arts + |
| Alsia californica + | Proc. Amer. Acad. Arts + |
| Alstroemeria + | Pl. Alströmeria, + |
| Alstroemeria pulchella + | Suppl. Pl., + |
| Alternanthera + | Fl. Aegypt.-Arab., + |
| Alternanthera brasiliana + | Revis. Gen. Pl. + |
| Alternanthera caracasana + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Alternanthera ficoidea + | Fl. Oware + |
| Alternanthera ficoidea var. bettzickiana + | in C. G. G. J. van Steenis, Fl. Males. Ser. + |
| Alternanthera flavescens + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Alternanthera maritima + | Voy. Distr. Diam. + |
| Alternanthera paronychioides + | Voy. Distr. Diam. + |
| Alternanthera philoxeroides + | Abh. Königl. Ges. Wiss. Göttingen + |
| Alternanthera pungens + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Alternanthera sessilis + | Cat. Pl. Hort. Monsp., + |
| Althaea + | Sp. Pl. +, Gen. Pl. ed. + |
| Althaea armeniaca + | Index Seminum (Naples) + |
| Althaea cannabina + | Sp. Pl. + |
| Althaea hirsuta + | Sp. Pl. + |
| Althaea officinalis + | Sp. Pl. + |
| Alvaradoa + | Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn + |
| Alvaradoa amorphoides + | Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn + |
| Alvaradoa amorphoides subsp. psilophylla + | Brittonia + |
| Alyssum + | Sp. Pl. +, Gen. Pl. ed. + |
| Alyssum alyssoides + | Syst. Nat. ed. + |
| Alyssum desertorum + | Denkschr. Kaiserl. Akad. Wiss., Wien. Math.-Naturwiss. Kl. + |
| Alyssum murale + | Descr. Icon. Pl. Hung. + |
| Alyssum obovatum + | Bull. Soc. Imp. Naturalistes Moscou + |
| Alyssum simplex + | J. Bot. (Schrader) + |
| Alyssum szowitsianum + | Index Seminum (St. Petersburg) + |
| Amaranthus + | Sp. Pl. +, Gen. Pl., ed. + |
| Amaranthus acanthochiton + | Madroño + |
| Amaranthus albus + | Syst. Nat. ed. + |
| Amaranthus arenicola + | J. Arnold Arbor. + |
| Amaranthus australis + | Madroño + |
| Amaranthus blitoides + | Proc. Amer. Acad. Arts + |
| Amaranthus blitum + | Sp. Pl. + |
| Amaranthus californicus + | in W. H. Brewer et al., Bot. California + |
| Amaranthus cannabinus + | Madroño + |
| Amaranthus caudatus + | Sp. Pl. + |
| Amaranthus crassipes + | Linnaea + |
| Amaranthus crispus + | in A. Gray et al., Manual ed. + |
| Amaranthus cruentus + | Syst. Nat. ed. + |
| Amaranthus deflexus + | Mant. Pl. + |
| Amaranthus dubius + | Fl. Adv. Montpellier + |
| Amaranthus fimbriatus + | in W. H. Brewer et al., Bot. California + |
| Amaranthus floridanus + | Madroño + |
| Amaranthus graecizans + | Sp. Pl. + |
| Amaranthus greggii + | Proc. Amer. Acad. Arts + |
| Amaranthus hybridus + | Sp. Pl. + |
| Amaranthus hypochondriacus + | Sp. Pl. + |
| Amaranthus muricatus + | Pl. Diaph. Fl. Argent., + |
| Amaranthus obcordatus + | in N. L. Britton et al., N. Amer. Fl. + |
| Amaranthus palmeri + | Proc. Amer. Acad. Arts + |
| Amaranthus polygonoides + | Pl. Jamaic. Pug., + |
| Amaranthus powellii + | Proc. Amer. Acad. Arts + |
| Amaranthus pumilus + | Med. Repos., hexade + |
| Amaranthus retroflexus + | Sp. Pl. + |
| Amaranthus scleropoides + | Bot. Gaz. + |
| Amaranthus sect. Acanthochiton + | Ann. Bot. F enn. + |
| Amaranthus sect. Acnida + | Ann. Bot. Fenn. + |
| Amaranthus sect. Saueranthus + | Ann. Bot. Fenn. + |
| Amaranthus spinosus + | Sp. Pl. + |
| Amaranthus subg. Acnida + | J. Arnold Arbor. + |
| Amaranthus subg. Albersia + | Fl. France + |
| Amaranthus subg. Amaranthus + | Sp. Pl. +, Gen. Pl., ed. + |
| Amaranthus tamaulipensis + | Sida + |
| Amaranthus thunbergii + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amaranthus torreyi + | in W. H. Brewer et al., Bot. California + |
| Amaranthus tricolor + | Sp. Pl. + |
| Amaranthus tuberculatus + | Madroño + |
| Amaranthus viridis + | Sp. Pl. ed. + |
| Amaranthus viscidulus + | Pittonia + |
| Amaranthus watsonii + | Bull. Torrey Bot. Club + |
| Amaranthus wrightii + | Proc. Amer. Acad. Arts + |
| Amauriopsis + | in N. L. Britton et al., N. Amer. Fl. + |
| Amauriopsis dissecta + | in N. L. Britton et al., N. Amer. Fl. + |
| Amberboa + | Syn. Gen. Compos., + |
| Amberboa moschata + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amblyodon + | Mag. Encycl. + |
| Amblyodon dealbatus + | in F. Cuvier, Dict. Sci. Nat. + |
| Amblyolepis + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amblyolepis setigera + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amblyopappus + | J. Bot. (Hooker) + |
| Amblyopappus pusillus + | J. Bot. (Hooker) + |
| Amblystegium + | in P. Bruch and W. P. Schimper, Bryol. Europ. + |
| Amblystegium serpens + | in P. Bruch and W. P. Schimper, Bryol. Europ. + |
| Ambrosia + | Sp. Pl. +, Gen. Pl. ed. + |
| Ambrosia acanthicarpa + | Fl. Bor.-Amer. + |
| Ambrosia ambrosioides + | J. Arnold Arbor. + |
| Ambrosia artemisiifolia + | Sp. Pl. + |
| Ambrosia bidentata + | Fl. Bor.-Amer. + |
| Ambrosia chamissonis + | Man. Bot. San Francisco, + |
| Ambrosia cheiranthifolia + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Ambrosia chenopodiifolia + | J. Arnold Arbor. + |
| Ambrosia confertiflora + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Ambrosia cordifolia + | J. Arnold Arbor. + |
| Ambrosia deltoidea + | J. Arnold Arbor. + |
| Ambrosia dumosa + | J. Arnold Arbor. + |
| Ambrosia eriocentra + | J. Arnold Arbor. + |
| Ambrosia grayi + | Field & Lab. + |
| Ambrosia hispida + | Fl. Amer. Sept., + |
| Ambrosia ilicifolia + | J. Arnold Arbor. + |
| Ambrosia linearis + | J. Arnold Arbor. + |
| Ambrosia monogyra + | Madroño + |
| Ambrosia psilostachya + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Ambrosia pumila + | Proc. Amer. Acad. Arts + |
| Ambrosia salsola + | Madroño + |
| Ambrosia tomentosa + | Gen. N. Amer. Pl. + |
| Ambrosia trifida + | Sp. Pl. + |
| Amelanchier + | Philos. Bot. + |
| Amelanchier alnifolia + | Fam. Nat. Syn. Monogr. + |
| Amelanchier alnifolia var. alnifolia + | Fam. Nat. Syn. Monogr. + |
| Amelanchier alnifolia var. pumila + | Ill. Handb. Laubholzk. + |
| Amelanchier alnifolia var. semiintegrifolia + | in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. + |
| Amelanchier amabilis + | Rhodora + |
| Amelanchier arborea + | Rhodora + |
| Amelanchier bartramiana + | Fam. Nat. Syn. Monogr. + |
| Amelanchier canadensis + | Gesch. Bot., + |
| Amelanchier canadensis var. canadensis + | Gesch. Bot., + |
| Amelanchier canadensis var. obovalis + | Prelim. Cat., + |
| Amelanchier cusickii + | Erythea + |
| Amelanchier fernaldii + | Rhodora + |
| Amelanchier gaspensis + | Rhodora + |
| Amelanchier humilis + | Rhodora + |
| Amelanchier interior + | Amer. Midl. Naturalist + |
| Amelanchier intermedia + | Hist. Nat. Vég. + |
| Amelanchier laevis + | Rhodora + |
| Amelanchier nantucketensis + | Bull. Torrey Bot. Club + |
| Amelanchier nitens + | Proc. Biol. Soc. Wash. + |
| Amelanchier pallida + | Fl. Francisc., + |
| Amelanchier sanguinea + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amelanchier spicata + | Dendrologie + |
| Amelanchier utahensis + | Gatt. Pomac., + |
| Amerorchis + | Ark. Bot., n. s. + |
| Amerorchis rotundifolia + | Ark. Bot., n. s. + |
| Amianthium + | Ann. Lyceum Nat. Hist. New York + |
| Amianthium muscitoxicum + | Ann. Lyceum Nat. Hist. New York + |
| Amoreuxia + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amoreuxia gonzalezii + | Bull. Misc. Inform. Kew + |
| Amoreuxia palmatifida + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Amoreuxia wrightii + | Smithsonian Contr. Knowl. + |
| Ampelaster + | Phytologia + |
| Ampelaster carolinianus + | Phytologia + |
| Ampelopsis + | Fl. Bor.-Amer. + |
| Ampelopsis aconitifolia + | Enum. Pl. China Bor., + |
| Ampelopsis cordata + | Fl. Bor.-Amer. + |
| Ampelopsis glandulosa + | Bull. Univ. Mus. Univ. Tokyo + |
| Amphiachyris + | Trans. Amer. Philos. Soc., n. s. + |
| Amphiachyris amoena + | Rhodora + |
| Amphiachyris dracunculoides + | Trans. Amer. Philos. Soc., n. s. + |
| Amphidium + | Coroll. Bryol. Eur., + |
| Amphidium californicum + | in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. + |
| Amphidium lapponicum + | Coroll. Bryol. Eur., + |
| Amphidium mougeotii + | Coroll. Bryol. Eur., + |
| Amphipappus + | Boston J. Nat. Hist. + |
| Amphipappus fremontii + | Boston J. Nat. Hist. + |
| Amphipappus fremontii var. fremontii + | Boston J. Nat. Hist. + |
| Amphipappus fremontii var. spinosus + | Amer. J. Bot. + |
| Amphiscirpus + | Notes Roy. Bot. Gard. Edinburgh + |
| Amphiscirpus nevadensis + | Notes Roy. Bot. Gard. Edinburgh + |
| Anacamptodon + | Muscol. Recent., suppl. + |
| Anacamptodon splachnoides + | Muscol. Recent., suppl. + |
| Anacolia + | Syn. Musc. Eur. ed. + |
| Anacolia laevisphaera + | in A. J. Grout, Moss Fl. N. Amer. + |
| Anacolia menziesii + | Actes Soc. Linn. Bordeaux, sér. + |
| Anagallis + | Sp. Pl. +, Gen. Pl. ed. + |
| Anagallis arvensis + | Sp. Pl. + |
| Anagallis minima + | in J. Sturm et al., Deutschl. Fl. ed. + |
| Anagallis monelli + | Sp. Pl. + |
| Anagallis pumila + | Prodr. + |
| Anaphalis + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Anaphalis margaritacea + | Gen. Pl. + |
| Ancistrocactus + | Cact. + |
| Ancistrocactus brevihamatus + | Cact. + |
| Ancistrocactus scheeri + | Cact. + |
| Ancistrocarphus + | Proc. Amer. Acad. Arts + |
| Ancistrocarphus filagineus + | Proc. Amer. Acad. Arts + |
| Ancistrocarphus keilii + | Novon + |
| Andreaea + | Sp. Musc. Frond., + |
| Andreaea alpina + | Sp. Musc. Frond., + |
| Andreaea blyttii + | in P. Bruch and W. P. Schimper, Bryol. Europ. + |
| Andreaea heinemannii + | Bot. Zeitung (Berlin) + |
| Andreaea megistospora + | Bryologist + |
| Andreaea mutabilis + | London J. Bot. + |
| Andreaea nivalis + | Trans. Linn. Soc. London + |
| Andreaea obovata + | Nya Bot. Not. + |
| Andreaea rothii + | Bot. Taschenbuch, + |
| Andreaea rupestris + | Sp. Musc. Frond., + |
| Andreaea schofieldiana + | Bryologist + |
| Andreaea sinuosa + | Bryologist + |
| Andreaeobryum + | Phytologia + |
| Andreaeobryum macrosporum + | Phytologia + |
| Andromeda + | Sp. Pl. +, Gen. Pl. ed. + |
| Andromeda polifolia + | Sp. Pl. + |
| Andromeda polifolia var. latifolia + | Hort. Kew. + |
| Andromeda polifolia var. polifolia + | Sp. Pl. + |
| Androsace + | Sp. Pl. +, Gen. Pl. ed. + |
| Androsace chamaejasme + | Syn. Pl., + |
| Androsace chamaejasme subsp. lehmanniana + | Fl. Alaska Yukon + |
| Androsace elongata + | Sp. Pl. ed. + |
| Androsace elongata subsp. acuta + | Amer. Midl. Naturalist + |
| Androsace filiformis + | Observ. Bot. + |
| Androsace occidentalis + | Fl. Amer. Sept. + |
| Androsace septentrionalis + | Sp. Pl. + |
| Androstephium + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Androstephium breviflorum + | Amer. Naturalist + |
| Androstephium coeruleum + | Pittonia + |
| Anelsonia + | Bot. Gaz. + |
| Anelsonia eurycarpa + | Bot. Gaz. + |
| Anemia + | Syn. Fil. + |
| Anemia adiantifolia + | Syn. Fil. + |
| Anemia mexicana + | Linnaea + |
| Anemia wrightii + | in Hooker & Baker,Syn. Fil. + |
| Anemone + | Sp. Pl. +, Gen. Pl. ed. + |
| Anemone acutiloba + | Proc. & Trans. Roy. Soc. Canada + |
| Anemone americana + | J. Jap. Bot. + |
| Anemone berlandieri + | Linnaea + |
| Anemone canadensis + | Syst. Nat. ed. + |
| Anemone caroliniana + | Fl. Carol., + |
| Anemone cylindrica + | Ann. Lyceum Nat. Hist. New York + |
| Anemone deltoidea + | Fl. Bor.-Amer. + |
| Anemone drummondii + | Bot. California + |
| Anemone drummondii var. drummondii + | Bot. California + |
| Anemone drummondii var. lithophila + | Vasc. Pl. Pacif. N.W. + |
| Anemone edwardsiana + | Amer. Midl. Naturalist + |
| Anemone edwardsiana var. edwardsiana + | Amer. Midl. Naturalist + |
| Anemone edwardsiana var. petraea + | Madroño + |
| Anemone grayi + | Bull. Calif. Acad. Sci. + |
| Anemone lancifolia + | Fl. Amer. Sept. + |
| Anemone lyallii + | Ann. New York Acad. Sci. + |
| Anemone multiceps + | Publ. Field Mus. Nat. Hist., Rep. Ser. + |
| Anemone multifida + | in J.Lamarck et al., Encycl., suppl. + |
| Anemone multifida var. multifida + | in J.Lamarck et al., Encycl., suppl. + |
| Anemone multifida var. saxicola + | Canad. Field-Naturalist + |
| Anemone multifida var. stylosa + | Phytologia + |
| Anemone multifida var. tetonensis + | Vasc. Pl. Pacif. N.W. + |
| Anemone narcissiflora + | Sp. Pl. + |
| Anemone narcissiflora var. monantha + | Syst. Nat. + |
| Anemone narcissiflora var. villosissima + | Prodr. + |
| Anemone narcissiflora var. zephyra + | Phytolgia + |
| Anemone occidentalis + | Proc. Amer. Acad. Arts + |
| Anemone okennonii + | Sida + |
| Anemone oregana + | Proc. Amer. Acad. Arts + |
| Anemone oregana var. felix + | Vasc. Pl. Pacif. N.W. + |
| Anemone oregana var. oregana + | Proc. Amer. Acad. Arts + |
| Anemone parviflora + | Fl. Bor.-Amer. + |
| Anemone patens + | Sp. Pl. + |
| Anemone patens var. multifida + | Linnaea + |
| Anemone piperi + | Bull. Torrey Bot. Club + |
| Anemone quinquefolia + | Sp. Pl. + |
| Anemone quinquefolia var. minima + | Phytologia + |
| Anemone quinquefolia var. quinquefolia + | Sp. Pl. + |
| Anemone richardsonii + | Fl. Bor.-Amer. + |
| Anemone tuberosa + | Bull. Torrey Bot. Club + |
| Anemone virginiana + | Sp. Pl. + |
| Anemone virginiana var. alba + | Class-book Bot. ed. + |
| Anemone virginiana var. cylindroidea + | Phytologia + |
| Anemone virginiana var. virginiana + | Sp. Pl. + |
| Anemopsis + | Bot. Beechey Voy., + |
| Anemopsis californica + | Bot. Beechey Voy., + |
| Angelonia + | Pl. Aequinoct. + |
| Angelonia gardneri + | Bot. Mag. + |
| Anisocarpus + | Trans. Amer. Philos. Soc., n. s. + |
| Anisocarpus madioides + | Trans. Amer. Philos. Soc., n. s. + |
| Anisocarpus scabridus + | Novon + |
| Anisocoma + | Boston J. Nat. Hist. + |
| Anisocoma acaulis + | Boston J. Nat. Hist. + |
| Annona + | Sp. Pl. +, Gen. Pl. ed. + |
| Annona glabra + | Sp. Pl. + |
| Annona squamosa + | Sp. Pl. + |
| Anoda + | Diss. + |
| Anoda abutiloides + | Proc. Amer. Acad. Arts + |
| Anoda crenatiflora + | Nov. Pl. Descr. Dec. + |
| Anoda cristata + | Linnaea + |
| Anoda lanceolata + | Bot. Beechey Voy., + |
| Anoda pentaschista + | Smithsonian Contr. Knowl. + |
| Anoda reticulata + | Proc. Amer. Acad. Arts + |
| Anoda thurberi + | Proc. Amer. Acad. Arts + |
| Anoectangium + | Sp. Musc. Frond. Suppl. + |
| Anoectangium aestivum + | J. Linn. Soc., Bot. + |
| Anoectangium handelii + | Ann. K. K. Naturhist. Hofmus. + |
| Anoectangium stracheyanum + | J. Linn. Soc., Bot., suppl. + |
| Anomobryum + | Syn. Musc. Eur., cxxxviii, + |
| Anomobryum concinnatum + | Öfvers Kongl. Vetensk.-Akad. Förh. + |
| Anomobryum julaceum + | Syn. Musc. Eur., + |
| Anomodon + | Muscol. Brit., + |
| Anomodon attenuatus + | Muscol. Germ., + |
| Anomodon longifolius + | Handb. Skand. Fl. ed. + |
| Anomodon minor + | Bot. Not. + |
| Anomodon rostratus + | Syn. Musc. Eur., + |
| Anomodon rugelii + | Ann. K. K. Naturhist. Hofmus. + |
| Anomodon thraustus + | Nuovo Giorn. Bot. Ital., n. s. + |
| Anomodon tristis + | in W. S. Sullivant, Musc. Hepat. U.S., + |
| Anomodon viticulosus + | Muscol. Brit., + |
| Anredera + | Gen. Pl., + |
| Anredera cordifolia + | Fl. Males. Ser. + |
| Anredera vesicaria + | Suppl. Carp., + |
| Antennaria + | Fruct. Sem. Pl. + |
| Antennaria alpina + | Fruct. Sem. Pl. + |
| Antennaria anaphaloides + | Mem. New York Bot. Gard. + |
| Antennaria arcuata + | Leafl. W. Bot. + |
| Antennaria argentea + | Pl. Hartw., + |
| Antennaria aromatica + | Madroño + |
| Antennaria corymbosa + | Bot. Gaz. + |
| Antennaria densifolia + | Bull. Natl. Mus. Canada + |
| Antennaria dimorpha + | Fl. N. Amer. + |
| Antennaria dioica + | Fruct. Sem. Pl. + |
| Antennaria flagellaris + | Proc. Amer. Acad. Arts + |
| Antennaria friesiana + | Svensk Bot. Tidskr. + |
| Antennaria friesiana subsp. alaskana + | Ark. Bot., n. s. + |
| Antennaria friesiana subsp. friesiana + | Svensk Bot. Tidskr. + |
| Antennaria friesiana subsp. neoalaskana + | Canad. J. Bot. + |
| Antennaria geyeri + | Mem. Amer. Acad. Arts, n. s. + |
| Antennaria howellii + | Pittonia + |
| Antennaria howellii subsp. canadensis + | Brittonia + |
| Antennaria howellii subsp. howellii + | Pittonia + |
| Antennaria howellii subsp. neodioica + | Brittonia + |
| Antennaria howellii subsp. petaloidea + | Brittonia + |
| Antennaria lanata + | Pittonia + |
| Antennaria luzuloides + | Fl. N. Amer. + |
| Antennaria luzuloides subsp. aberrans + | Canad. J. Bot. + |
| Antennaria luzuloides subsp. luzuloides + | Fl. N. Amer. + |
| Antennaria marginata + | Pittonia + |
| Antennaria media + | Pittonia + |
| Antennaria microphylla + | Bull. Torrey Bot. Club + |
| Antennaria monocephala + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Antennaria monocephala subsp. angustata + | Ark. Bot., n. s. + |
| Antennaria monocephala subsp. monocephala + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Antennaria neglecta + | Pittonia + |
| Antennaria parlinii + | Gard. & Forest + |
| Antennaria parlinii subsp. fallax + | Syst. Bot. + |
| Antennaria parlinii subsp. parlinii + | Gard. & Forest + |
| Antennaria parvifolia + | Trans. Amer. Philos. Soc., n. s. + |
| Antennaria plantaginifolia + | Fl. Bor.-Amer. + |
| Antennaria pulchella + | Leafl. Bot. Observ. Crit. + |
| Antennaria pulcherrima + | Pittonia + |
| Antennaria pulcherrima subsp. eucosma + | Sida + |
| Antennaria pulcherrima subsp. pulcherrima + | Pittonia + |
| Antennaria racemosa + | Fl. Bor.-Amer. + |
| Antennaria rosea + | Pittonia + |
| Antennaria rosea subsp. arida + | Brittonia + |
| Antennaria rosea subsp. confinis + | Brittonia + |
| Antennaria rosea subsp. pulvinata + | Brittonia + |
| Antennaria rosea subsp. rosea + | Pittonia + |
| Antennaria rosulata + | Bull. Torrey Bot. Club + |
| Antennaria soliceps + | Proc. Biol. Soc. Wash. + |
| Antennaria solitaria + | Bull. Torrey Bot. Club + |
| Antennaria stenophylla + | Proc. Amer. Acad. Arts + |
| Antennaria suffrutescens + | Pittonia + |
| Antennaria umbrinella + | Bull. Torrey Bot. Club + |
| Antennaria virginica + | Rhodora + |
| Anthemis + | Sp. Pl. +, Gen. Pl. ed. + |
| Anthemis arvensis + | Sp. Pl. + |
| Anthemis cotula + | Sp. Pl. + |
| Antigonon + | Gen. Pl. + |
| Antigonon leptopus + | Bot. Beechy Voy., + |
| Antirrhinum + | Sp. Pl. + |
| Antirrhinum majus + | Sp. Pl. + |
| Antitrichia + | Muscol. Recent., suppl. + |
| Antitrichia californica + | Trans. Amer. Philos. Soc., n. s. + |
| Antitrichia curtipendula + | Muscol. Recent., suppl. + |
| Anulocaulis + | Contr. U.S. Natl. Herb. + |
| Anulocaulis annulatus + | Contr. U.S. Natl. Herb. + |
| Anulocaulis eriosolenus + | Contr. U.S. Natl. Herb. + |
| Anulocaulis leiosolenus + | Contr. U.S. Natl. Herb. + |
| Anulocaulis leiosolenus var. gypsogenus + | Sida + |
| Anulocaulis leiosolenus var. howardii + | Sida + |
| Anulocaulis leiosolenus var. lasianthus + | J. Arnold Arbor. + |
| Anulocaulis leiosolenus var. leiosolenus + | Contr. U.S. Natl. Herb. + |
| Anulocaulis reflexus + | J. Arnold Arbor. + |
| Aongstroemia + | Bryol. Europ. + |
| Aongstroemia longipes + | Bryol. Europ. + |
| Apacheria + | Madroño + |
| Apacheria chiricahuensis + | Madroño + |
| Aphanes + | Sp. Pl. +, Gen. Pl. ed. + |
| Aphanes arvensis + | Sp. Pl. + |
| Aphanes australis + | in N. L. Britton et al., N. Amer. Fl. + |
| Aphanes occidentalis + | in N. L. Britton et al., N. Amer. Fl. + |
| Aphanisma + | in A. P. de Candolle and A. L. P. P. de Candolle, Prod. + |
| Aphanisma blitoides + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aphanorrhegma + | in A. Gray, Manual, + |
| Aphanorrhegma serratum + | in A. Gray, Manual, + |
| Aphanostephus + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aphanostephus pilosus + | Proc. Acad. Nat. Sci. Philadelphia + |
| Aphanostephus ramosissimus + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aphanostephus ramosissimus var. humilis + | Phytologia + |
| Aphanostephus ramosissimus var. ramosissimus + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aphanostephus riddellii + | Fl. N. Amer. + |
| Aphanostephus skirrhobasis + | Rep. (Annual) Arkansas Geol. Surv. + |
| Aphanostephus skirrhobasis var. kidderi + | Phytologia + |
| Aphanostephus skirrhobasis var. skirrhobasis + | Rep. (Annual) Arkansas Geol. Surv. + |
| Aphanostephus skirrhobasis var. thalassius + | Wrightia + |
| Aphragmus + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aphragmus eschscholtzianus + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Aplectrum + | Gen. N. Amer. Pl. + |
| Aplectrum hyemale + | Gen. N. Amer. Pl. + |
| Aplodon + | Chlor. Melvill., + |
| Aplodon wormskioldii + | Chlor. Melvill., + |
| Apodanthera + | J. Bot. (Hooker) + |
| Apodanthera undulata + | Smithsonian Contr. Knowl. + |
| Apodanthera undulata var. undulata + | Smithsonian Contr. Knowl. + |
| Aponogeton + | Supplementum Plantarum + |
| Aponogeton distachyos + | Supplementum Plantarum + |
| Aptenia + | Gard. Chron., ser. + |
| Aptenia cordifolia + | Gartenflora, + |
| Apteria + | J. Acad. Nat. Sci. Philadelphia + |
| Apteria aphylla + | Fl. S.E. U.S., + |
| Aquilegia + | Sp. Pl. +, Gen. Pl. ed. + |
| Aquilegia barnebyi + | Leafl. W. Bot. + |
| Aquilegia brevistyla + | Fl. Bor.-Amer. + |
| Aquilegia canadensis + | Sp. Pl. + |
| Aquilegia chaplinei + | Contr. U.S. Natl. Herb. + |
| Aquilegia chrysantha + | Proc. Amer. Acad. Arts + |
| Aquilegia coerulea + | Account Exped. Pittsburgh + |
| Aquilegia coerulea var. alpina + | Wyoming Agaric. Exp. Sta. Bull. + |
| Aquilegia coerulea var. coerulea + | Account Exped. Pittsburgh + |
| Aquilegia coerulea var. ochroleuca + | Bot. Mag., plate + |
| Aquilegia coerulea var. pinetorum + | Fl. Pl. Ferns Ariz., + |
| Aquilegia desertorum + | Muhlenbergia + |
| Aquilegia elegantula + | Pittonia + |
| Aquilegia eximia + | J. Gén. Hort. + |
| Aquilegia flavescens + | Botany (Fortieth Parallel), + |
| Aquilegia formosa + | Prodr. + |
| Aquilegia formosa var. formosa + | Prodr. + |
| Aquilegia formosa var. hypolasia + | Gentes Herb. + |
| Aquilegia formosa var. truncata + | Gard. Chron., ser. + |
| Aquilegia hinckleyana + | Gentes Herb. + |
| Aquilegia jonesii + | Amer. Naturalist + |
| Aquilegia laramiensis + | Wyoming Agric. Exp. Sta. Bull. + |
| Aquilegia longissima + | Proc. Amer. Acad. Arts + |
| Aquilegia micrantha + | Proc. Calif. Acad. Sci., ser. + |
| Aquilegia pubescens + | Contr. U.S. Natl. Herb. + |
| Aquilegia saximontana + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Aquilegia scopulorum + | Amer. Midl. Naturalist + |
| Aquilegia shockleyi + | Bull. Torrey Bot. Club + |
| Aquilegia vulgaris + | Sp. Pl. + |
| Arabidopsis + | in F. Holl and G. Heynhold, Fl. Sachsen + |
| Arabidopsis arenicola + | Canad. J. Bot. + |
| Arabidopsis arenosa + | Bull. Soc. Roy. Bot. Belgique + |
| Arabidopsis arenosa subsp. arenosa + | Bull. Soc. Roy. Bot. Belgique + |
| Arabidopsis lyrata + | Novon + |
| Arabidopsis lyrata subsp. kamchatica + | Novon + |
| Arabidopsis lyrata subsp. lyrata + | Novon + |
| Arabidopsis lyrata subsp. petraea + | Novon + |
| Arabidopsis thaliana + | in F. Holl and G. Heynhold, Fl. Sachsen + |
| Arabis + | Sp. Pl. +, Gen. Pl. ed. + |
| Arabis aculeolata + | Leafl. Bot. Observ. Crit. + |
| Arabis alpina + | Sp. Pl. + |
| Arabis blepharophylla + | Bot. Beechey Voy., + |
| Arabis caucasica + | Enum. Pl., suppl., + |
| Arabis crucisetosa + | Proc. Biol. Soc. Wash. + |
| Arabis eschscholtziana + | in C. F. von Ledebour, Fl. Altaica + |
| Arabis furcata + | Proc. Amer. Acad. Arts + |
| Arabis georgiana + | Torreya + |
| Arabis mcdonaldiana + | Bull. Torrey Bot. Club + |
| Arabis modesta + | Rhodora + |
| Arabis nuttallii + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Arabis olympica + | Contr. U.S. Natl. Herb. + |
| Arabis oregana + | Rhodora + |
| Arabis patens + | Amer. J. Sci. Arts + |
| Arabis pycnocarpa + | Rhodora + |
| Arabis pycnocarpa var. adpressipilis + | Rhodora + |
| Arabis pycnocarpa var. pycnocarpa + | Rhodora + |
| Arachniodes + | Enum. Pl. Javae + |
| Arachniodes simplicior + | J. Jap. Bot. + |
| Arbutus + | Sp. Pl. +, Gen. Pl. ed. + |
| Arbutus arizonica + | Gard. & Forest + |
| Arbutus menziesii + | Fl. Amer. Sept. + |
| Arbutus xalapensis + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Arceuthobium + | Fl. Taur.-Caucas. + |
| Arceuthobium americanum + | Boston J. Nat. Hist. + |
| Arceuthobium campylopodum + | Boston J. Nat. Hist. + |
| Arceuthobium campylopodum subsp. abietinum + | Phytoneuron + |
| Arceuthobium campylopodum subsp. apachecum + | Phytoneuron + |
| Arceuthobium campylopodum subsp. blumeri + | Phytoneuron + |
| Arceuthobium campylopodum subsp. californicum + | Phytoneuron + |
| Arceuthobium campylopodum subsp. campylopodum + | Boston J. Nat. Hist. + |
| Arceuthobium campylopodum subsp. cyanocarpum + | Phytoneuron + |
| Arceuthobium campylopodum subsp. laricis + | Phytoneuron + |
| Arceuthobium campylopodum subsp. littorum + | Wiens & Nickrent) Nickrent, Phytoneuron + |
| Arceuthobium campylopodum subsp. microcarpum + | Phytoneuron + |
| Arceuthobium campylopodum subsp. monticola + | Wiens & Nickrent) Nickrent, Phytoneuron + |
| Arceuthobium campylopodum subsp. occidentale + | Phytoneuron + |
| Arceuthobium campylopodum subsp. siskiyouense + | Wiens & Nickrent) Nickrent, Phytoneuron + |
| Arceuthobium campylopodum subsp. tsugense + | Phytoneuron + |
| Arceuthobium divaricatum + | Rep. U.S. Geogr. Surv., Wheeler, + |
| Arceuthobium douglasii + | Rep. U.S. Geogr. Surv., Wheeler, + |
| Arceuthobium gillii + | Brittonia + |
| Arceuthobium pusillum + | Trans. Albany Inst. + |
| Arceuthobium vaginatum + | Prir. Rostlin + |
| Arceuthobium vaginatum subsp. cryptopodum + | Brittonia + |
| Archidium + | Bryol. Univ. + |
| Archidium alternifolium + | Ann. Mag. Nat. Hist., ser. + |
| Archidium donnellii + | Bull. Torrey Bot. Club + |
| Archidium hallii + | Bull. Torrey Bot. Club + |
| Archidium minus + | J. Hattori Bot. Lab. + |
| Archidium ohioense + | Syn. Musc. Frond. + |
| Archidium tenerrimum + | J. Linn. Soc., Bot. + |
| Arctanthemum + | Novosti Sist. Vyssh. Rast. + |
| Arctanthemum arcticum + | in A. I. Tolmatchew, Fl. Arct. URSS + |
| Arctanthemum arcticum subsp. arcticum + | in A. I. Tolmatchew, Fl. Arct. URSS + |
| Arctanthemum arcticum subsp. polare + | in A. I. Tolmatchew, Fl. Arct. URSS + |
| Arctium + | Sp. Pl. +, Gen. Pl. ed. + |
| Arctium lappa + | Sp. Pl. + |
| Arctium minus + | Syst. Verz., + |
| Arctium tomentosum + | Gard. Dict. ed. + |
| Arctoa + | Bryol. Europ. + |
| Arctoa anderssonii + | Flora + |
| Arctoa fulvella + | Bryol. Europ. + |
| Arctoa hyperborea + | Bryol. Europ. + |
| Arctomecon + | in J. C. Frémont, Rep. Exped. Rocky Mts., + |
| Arctomecon californica + | in J. C. Frémont, Rep. Exped. Rocky Mts., + |
| Arctomecon humilis + | Proc. Biol. Soc. Wash. + |
| Arctomecon merriamii + | Proc. Biol. Soc. Wash. + |
| Arctostaphylos + | Fam. Pl. + |
| Arctostaphylos andersonii + | Proc. Amer. Acad. Arts + |
| Arctostaphylos auriculata + | Bull. Torrey Bot. Club + |
| Arctostaphylos bakeri + | Leafl. W. Bot. + |
| Arctostaphylos bakeri subsp. bakeri + | Leafl. W. Bot. + |
| Arctostaphylos bakeri subsp. sublaevis + | Four Seasons + |
| Arctostaphylos canescens + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos canescens subsp. canescens + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos canescens subsp. sonomensis + | Madroño + |
| Arctostaphylos catalinae + | Madroño + |
| Arctostaphylos columbiana + | in C. V. Piper and R. K. Beattie, Fl. N.W. Coast, + |
| Arctostaphylos confertiflora + | Leafl. W. Bot. + |
| Arctostaphylos crustacea + | Leafl. W. Bot. + |
| Arctostaphylos crustacea subsp. crinita + | Madroño + |
| Arctostaphylos crustacea subsp. crustacea + | Leafl. W. Bot. + |
| Arctostaphylos crustacea subsp. eastwoodiana + | Madroño + |
| Arctostaphylos crustacea subsp. insulicola + | Madroño + |
| Arctostaphylos crustacea subsp. rosei + | Madroño + |
| Arctostaphylos crustacea subsp. subcordata + | Madroño + |
| Arctostaphylos cruzensis + | Leafl. W. Bot + |
| Arctostaphylos densiflora + | Leafl. W. Bot. + |
| Arctostaphylos edmundsii + | Leafl. W. Bot. + |
| Arctostaphylos franciscana + | Bull. Torrey Bot. Club + |
| Arctostaphylos gabilanensis + | Madroño + |
| Arctostaphylos glandulosa + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos glandulosa subsp. adamsii + | Fl. S. Calif., + |
| Arctostaphylos glandulosa subsp. crassifolia + | Madroño + |
| Arctostaphylos glandulosa subsp. cushingiana + | Madroño + |
| Arctostaphylos glandulosa subsp. gabrielensis + | Madroño + |
| Arctostaphylos glandulosa subsp. glandulosa + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos glandulosa subsp. howellii + | Madroño + |
| Arctostaphylos glandulosa subsp. leucophylla + | Madroño + |
| Arctostaphylos glandulosa subsp. mollis + | Madroño + |
| Arctostaphylos glauca + | Edwards’s Bot. Reg. + |
| Arctostaphylos glutinosa + | Amer. Midl. Naturalist + |
| Arctostaphylos hispidula + | Fl. N.W. Amer., + |
| Arctostaphylos hookeri + | Gen. Hist. + |
| Arctostaphylos hookeri subsp. hearstiorum + | Madroño + |
| Arctostaphylos hookeri subsp. hookeri + | Gen. Hist. + |
| Arctostaphylos hooveri + | Leafl. W. Bot. + |
| Arctostaphylos imbricata + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos insularis + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos klamathensis + | Four Seasons + |
| Arctostaphylos luciana + | Leafl. W. Bot. + |
| Arctostaphylos malloryi + | Four Seasons + |
| Arctostaphylos manzanita + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos manzanita subsp. elegans + | Madroño + |
| Arctostaphylos manzanita subsp. glaucescens + | Four Seasons + |
| Arctostaphylos manzanita subsp. laevigata + | Aliso + |
| Arctostaphylos manzanita subsp. manzanita + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos manzanita subsp. roofii + | Madroño + |
| Arctostaphylos manzanita subsp. wieslanderi + | Madroño + |
| Arctostaphylos mewukka + | Proc. Biol. Soc. Wash. + |
| Arctostaphylos mewukka subsp. mewukka + | Proc. Biol. Soc. Wash. + |
| Arctostaphylos mewukka subsp. truei + | Four Seasons + |
| Arctostaphylos montana + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos montana subsp. montana + | Proc. Calif. Acad. Sci., ser. + |
| Arctostaphylos montana subsp. ravenii + | Madroño + |
| Arctostaphylos montaraensis + | Four Seasons + |
| Arctostaphylos montereyensis + | Leafl. W. Bot. + |
| Arctostaphylos morroensis + | Madroño + |
| Arctostaphylos myrtifolia + | Pittonia + |
| Arctostaphylos nevadensis + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Arctostaphylos nevadensis subsp. knightii + | Madroño + |
| Arctostaphylos nevadensis subsp. nevadensis + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Arctostaphylos nissenana + | Proc. Biol. Soc. Wash. + |
| Arctostaphylos nortensis + | Four Seasons + |
| Arctostaphylos nummularia + | Proc. Amer. Acad. Arts + |
| Arctostaphylos nummularia subsp. mendocinoensis + | Madroño + |
| Arctostaphylos nummularia subsp. nummularia + | Proc. Amer. Acad. Arts + |
| Arctostaphylos obispoensis + | Leafl. W. Bot. + |
| Arctostaphylos ohloneana + | Madroño + |
| Arctostaphylos osoensis + | Four Seasons + |
| Arctostaphylos otayensis + | Madroño + |
| Arctostaphylos pacifica + | Leafl. W. Bot. + |
| Arctostaphylos pajaroensis + | J. Elisha Mitchell Sci. Soc. + |
| Arctostaphylos pallida + | Leafl. W. Bot. + |
| Arctostaphylos parryana + | Pittonia + |
| Arctostaphylos parryana subsp. desertica + | Madroño + |
| Arctostaphylos parryana subsp. parryana + | Pittonia + |
| Arctostaphylos parryana subsp. tumescens + | Madroño + |
| Arctostaphylos patula + | Pittonia + |
| Arctostaphylos pechoensis + | Leafl. W. Bot. + |
| Arctostaphylos pilosula + | Erythea + |
| Arctostaphylos pringlei + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos pringlei subsp. drupacea + | Madroño + |
| Arctostaphylos pringlei subsp. pringlei + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos pumila + | Trans. Amer. Philos. Soc., n. s. + |
| Arctostaphylos pungens + | in A. von Humboldt et al., Nov. Gen. Sp. +, plate + |
| Arctostaphylos purissima + | Madroño + |
| Arctostaphylos rainbowensis + | Madroño + |
| Arctostaphylos refugioensis + | Four Seasons + |
| Arctostaphylos regismontana + | Leafl. W. Bot. + |
| Arctostaphylos rudis + | Erythea + |
| Arctostaphylos sensitiva + | Madroño + |
| Arctostaphylos silvicola + | Erythea + |
| Arctostaphylos stanfordiana + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos stanfordiana subsp. decumbens + | Four Seasons + |
| Arctostaphylos stanfordiana subsp. raichei + | Four Seasons + |
| Arctostaphylos stanfordiana subsp. stanfordiana + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos tomentosa + | Edwards’s Bot. Reg. + |
| Arctostaphylos tomentosa subsp. bracteosa + | J. Elisha Mitchell Sci. Soc. + |
| Arctostaphylos tomentosa subsp. daciticola + | Four Seasons + |
| Arctostaphylos tomentosa subsp. hebeclada + | Madroño + |
| Arctostaphylos tomentosa subsp. tomentosa + | Edwards’s Bot. Reg. + |
| Arctostaphylos uva-ursi + | Syst. Veg. + |
| Arctostaphylos virgata + | in C. S. Sargent, Trees & Shrubs + |
| Arctostaphylos viridissima + | Man. Calif. Shrubs, + |
| Arctostaphylos viscida + | Bull. Calif. Acad. Sci. + |
| Arctostaphylos viscida subsp. mariposa + | Madroño + |
| Arctostaphylos viscida subsp. pulchella + | Madroño + |
| Arctostaphylos viscida subsp. viscida + | Bull. Calif. Acad. Sci. + |
| Arctotheca + | Bot. Beob., +, Hort. Herrenhus. + |
| Arctotheca calendula + | J. S. African Bot. + |
| Arctotis + | Sp. Pl. +, Gen. Pl. ed. + |
| Arctotis fastuosa + | Pl. Hort. Schoenbr. + |
| Arctotis stoechadifolia + | Descr. Pl. Cap., + |
| Arctous + | Bot. Jahrb. Syst. + |
| Arctous alpina + | Bot. Jahrb. Syst. + |
| Arctous rubra + | Trees Shrubs Japan, + |
| Ardisia + | Prodr., + |
| Ardisia crenata + | Bot. Mag. + |
| Ardisia elliptica + | Nov. Gen. Pl., + |
| Ardisia escallonioides + | Linnaea + |
| Ardisia japonica + | Bijdr. Fl. Ned. Ind., + |
| Arecaceae (tribe Areceae) subtribe Dypsidinae + | Palme del Madagascar + |
| Arecaceae (tribe Areceae) subtribe Ptychospermatinae + | in G. Bentham & J. D. Hooker,Gen. Pl. + |
| Arecaceae (tribe Areceae) subtribe Roystoneinae + | Principes + |
| Arecaceae (tribe Cocoeae) subtribe Bactridinae + | in G. Bentham and J. D. Hooker,Gen. Pl. + |
| Arecaceae (tribe Cocoeae) subtribe Butiinae + | Palmy S.S.S.R. + |
| Arecaceae (tribe Cocoeae) subtribe Elaeidinae + | in G. Bentham and J. D. Hooker,Gen. Pl. + |
| Arecaceae (tribe Corypheae) subtribe Livistoninae + | Palmy S.S.S.R. + |
| Arecaceae (tribe Corypheae) subtribe Sabalinae + | in S. L. Endlicher,Gen. Pl. + |
| Arecaceae (tribe Corypheae) subtribe Thrinacinae + | Webbia + |
| Arecaceae subfam. Ceroxyloideae + | in C. F. P. von Martius et al.,Flora Brasiliensis + |
| Arecaceae subfam. Coryphoideae + | Calcutta Journal of Natural History and Miscellany of the Arts and Sciences in India + |
| Arecaceae tribe Caryoteae + | in C. F. P. von Martius et al.,Flora Brasiliensis + |
| Arecaceae tribe Cocoeae + | in S. L. Endlicher,Gen. Pl. + |
| Arecaceae tribe Corypheae + | in S. L. Endlicher,Gen. Pl. + |
| Arecaceae tribe Cyclospatheae + | Memoirs of the Torrey Botanical Club + |
| Arecaceae tribe Hyophorbeae + | in C. F. P. von Martius et al.,Flora Brasiliensis + |
| Arecaceae tribe Phoeniceae + | in C. F. P. von Martius et al.,Flora Brasiliensis + |
| Arenaria + | Sp. Pl. +, Gen. Pl. ed. + |
| Arenaria benthamii + | Fl. N. Amer. + |
| Arenaria humifusa + | Fl. Lapp., + |
| Arenaria lanuginosa + | in C. F. P. von Martius et al., Fl. Bras. + |
| Arenaria lanuginosa var. lanuginosa + | in C. F. P. von Martius et al., Fl. Bras. + |
| Arenaria lanuginosa var. saxosa + | Sida + |
| Arenaria livermorensis + | Brittonia + |
| Arenaria longipedunculata + | Bot. Not. + |
| Arenaria ludens + | Sida + |
| Arenaria paludicola + | Proc. Amer. Acad. Arts + |
| Arenaria pseudofrigida + | in V. L. Komarov et al., Fl. URSS + |
| Arenaria serpyllifolia + | Sp. Pl. + |
| Arenaria serpyllifolia var. serpyllifolia + | Sp. Pl. + |
| Arenaria serpyllifolia var. tenuior + | in J. C. Röhling et al., Deutschl. Fl. ed. + |
| Arethusa + | Sp. Pl. +, Gen. Pl. ed. + |
| Arethusa bulbosa + | Sp. Pl. + |
| Argemone + | Sp. Pl. +, Gen. Pl. ed. + |
| Argemone aenea + | Mem. Torrey Bot. Club + |
| Argemone albiflora + | Hort. Bot. Hafn. + |
| Argemone albiflora subsp. albiflora + | Hort. Bot. Hafn. + |
| Argemone albiflora subsp. texana + | Mem. Torrey Bot. Club + |
| Argemone arizonica + | Mem. Torrey Bot. Club + |
| Argemone aurantiaca + | Mem. Torrey Bot. Club + |
| Argemone chisosensis + | Mem. Torrey Bot. Club + |
| Argemone corymbosa + | Bull. Calif. Acad. Sci. + |
| Argemone corymbosa subsp. arenicola + | Mem. Torrey Bot. Club + |
| Argemone corymbosa subsp. corymbosa + | Bull. Calif. Acad. Sci. + |
| Argemone gracilenta + | Pittonia + |
| Argemone hispida + | Mem. Amer. Acad. Arts + |
| Argemone mexicana + | Sp. Pl. + |
| Argemone munita + | J. Acad. Nat. Sci. Philadelphia, ser. + |
| Argemone munita subsp. argentea + | Mem. Torrey Bot. Club + |
| Argemone munita subsp. munita + | J. Acad. Nat. Sci. Philadelphia, ser. + |
| Argemone munita subsp. robusta + | Mem. Torrey Bot. Club + |
| Argemone munita subsp. rotundata + | Mem. Torrey Bot. Club + |
| Argemone ochroleuca + | Brit. Fl. Gard. + |
| Argemone pleiacantha + | Feddes Repert. Spec. Nov. Regni Veg. + |
| Argemone pleiacantha subsp. ambigua + | Mem. Torrey Bot. Club + |
| Argemone pleiacantha subsp. pinnatisecta + | Mem. Torrey Bot. Club + |
| Argemone pleiacantha subsp. pleiacantha + | Feddes Repert. Spec. Nov. Regni Veg. + |
| Argemone polyanthemos + | Mem. Torrey Bot. Club + |
| Argemone sanguinea + | Pittonia + |
| Argemone squarrosa + | Pittonia + |
| Argemone squarrosa subsp. glabrata + | Mem. Torrey Bot. Club + |
| Argemone squarrosa subsp. squarrosa + | Pittonia + |
| Argyranthemum + | in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries + |
| Argyranthemum foeniculaceum + | in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries + |
| Argyrochosma + | Amer. Fern J. + |
| Argyrochosma dealbata + | Amer. Fern J. + |
| Argyrochosma fendleri + | Amer. Fern J. + |
| Argyrochosma incana + | Amer. Fern J. + |
| Argyrochosma jonesii + | Amer. Fern J. + |
| Argyrochosma limitanea + | Amer. Fern J. + |
| Argyrochosma limitanea subsp. limitanea + | Amer. Fern J. + |
| Argyrochosma limitanea subsp. mexicana + | Contr. Univ. Michigan Herb. + |
| Argyrochosma microphylla + | Amer. Fern J. + |
| Argythamnia + | Civ. Nat. Hist. Jamaica, + |
| Argythamnia adenophora + | Proc. Amer. Acad. Arts + |
| Argythamnia aphoroides + | Linnaea + |
| Argythamnia argothamnoides + | Bull. Torrey Bot. Club + |
| Argythamnia argyraea + | Madroño + |
| Argythamnia brandegeei + | Proc. Calif. Acad. Sci., ser. + |
| Argythamnia brandegeei var. intonsa + | Trees & Shrubs Southw. Deserts, + |
| Argythamnia claryana + | Fl. Calif. + |
| Argythamnia cyanophylla + | Bull. Torrey Bot. Club + |
| Argythamnia humilis + | Linnaea + |
| Argythamnia lanceolata + | Linnaea + |
| Argythamnia mercurialina + | Linnaea + |
| Argythamnia mercurialina var. mercurialina + | Linnaea + |
| Argythamnia mercurialina var. pilosissima + | Field & Lab. + |
| Argythamnia serrata + | Linnaea + |
| Argythamnia simulans + | Bull. Torrey Bot. Club + |
| Arida + | Sida + |
| Arida arizonica + | Sida + |
| Arida blepharophylla + | Sida + |
| Arida carnosa + | Sida + |
| Arida mattturneri + | Sida + |
| Arida parviflora + | Sida + |
| Arida riparia + | Sida + |
| Ariocarpus + | Bull. Acad. Roy. Sci. Bruxelles + |
| Ariocarpus fissuratus + | in H. G. A. Engler and K. Prantl, Nat. Pfla nzenfam. + |
| Ariocarpus fissuratus var. fissuratus + | in H. G. A. Engler and K. Prantl, Nat. Pfla nzenfam. + |
| Arisaema + | Flora + |
| Arisaema dracontium + | in H. W. Schott and S. L. Endlicher,Meletemata Botanica + |
| Arisaema triphyllum + | in H. W. Schott and S. L. Endlicher,Meletemata Botanica + |
| Aristocapsa + | Phytologia + |
| Aristocapsa insignis + | Phytologia + |
| Aristolochia + | Sp. Pl. +, Gen. Pl. ed. + |
| Aristolochia californica + | Pacif. Railr. Rep. + |
| Aristolochia clematitis + | Sp. Pl. + |
| Aristolochia coryi + | J. Arnold Arbor. + |
| Aristolochia erecta + | Sp. Pl. ed. + |
| Aristolochia macrophylla + | Encycl. + |
| Aristolochia maxima + | Enum. Syst. Pl., + |
| Aristolochia pentandra + | Enum. Syst. Pl., + |
| Aristolochia reticulata + | Trans. Amer. Philos. Soc., n.s. + |
| Aristolochia serpentaria + | Sp. Pl. + |
| Aristolochia tomentosa + | Bot. Mag. + |
| Aristolochia watsonii + | Contr. U.S. Natl. Herb. + |
| Aristolochia wrightii + | Bot. Voy. Herald, + |
| Arivela + | Sylva Tellur., + |
| Arivela viscosa + | Sylva Tellur., + |
| Armeria + | Enum. Pl. + |
| Armeria maritima + | Enum. Pl. + |
| Armeria maritima subsp. californica + | Bull. Natl. Mus. Canada + |
| Armeria maritima subsp. interior + | Bull. Natl. Mus. Canada + |
| Armeria maritima subsp. maritima + | Enum. Pl. + |
| Armeria maritima subsp. sibirica + | Consp. Fl. Eur., + |
| Armoracia + | Oekon. Fl. Wetterau + |
| Armoracia rusticana + | Oekon. Fl. Wetterau + |
| Arnica + | Sp. Pl. +, Gen. Pl. ed. + |
| Arnica acaulis + | Prelim. Cat., + |
| Arnica angustifolia + | in G. C. Oeder et al., Fl. Dan. + |
| Arnica angustifolia subsp. angustifolia + | in G. C. Oeder et al., Fl. Dan. + |
| Arnica angustifolia subsp. tomentosa + | Canad. J. Bot. + |
| Arnica cernua + | Fl. N.W. Amer., + |
| Arnica chamissonis + | Linnaea + |
| Arnica cordifolia + | Fl. Bor.-Amer. + |
| Arnica dealbata + | Novon + |
| Arnica discoidea + | Pl. Hartw., + |
| Arnica fulgens + | Fl. Amer. Sept. + |
| Arnica gracilis + | Bull. Torrey Bot. Club + |
| Arnica griscomii + | Rhodora + |
| Arnica griscomii subsp. frigida + | Taxon + |
| Arnica griscomii subsp. griscomii + | Rhodora + |
| Arnica lanceolata + | Trans. Amer. Philos. Soc., n. s. + |
| Arnica lanceolata subsp. lanceolata + | Trans. Amer. Philos. Soc., n. s. + |
| Arnica lanceolata subsp. prima + | Novon + |
| Arnica latifolia + | Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. + |
| Arnica lessingii + | Pittonia + |
| Arnica lonchophylla + | Pittonia + |
| Arnica longifolia + | in S. Watson, Botany (Fortieth Parallel), + |
| Arnica louiseana + | Ottawa Naturalist + |
| Arnica mollis + | Fl. Bor.-Amer. + |
| Arnica nevadensis + | Proc. Amer. Acad. Arts + |
| Arnica ovata + | Pittonia + |
| Arnica parryi + | Amer. Naturalist + |
| Arnica rydbergii + | Pittonia + |
| Arnica sororia + | Ottawa Naturalist + |
| Arnica spathulata + | Pittonia + |
| Arnica unalaschcensis + | Linnaea + |
| Arnica venosa + | Univ. Calif. Publ. Bot. + |
| Arnica viscosa + | Proc. Amer. Acad. Arts + |
| Arnoglossum + | Fl. Ludov., + |
| Arnoglossum album + | Sida + |
| Arnoglossum atriplicifolium + | Phytologia + |
| Arnoglossum diversifolium + | Phytologia + |
| Arnoglossum floridanum + | Phytologia + |
| Arnoglossum ovatum + | Phytologia + |
| Arnoglossum plantagineum + | Fl. Ludov., + |
| Arnoglossum reniforme + | Phytologia + |
| Arnoglossum sulcatum + | Phytologia + |
| Arnoseris + | Fruct. Sem. Pl. + |
| Arnoseris minima + | Fl. Erlang. + |
| Aronia + | Philos. Bot. + |
| Aronia arbutifolia + | Syn. Pl. + |
| Aronia melanocarpa + | Sketch Bot. S. Carolina + |
| Arrhenopterum + | Sp. Musc. Frond., + |
| Arrhenopterum heterostichum + | Sp. Musc. Frond., + |
| Artemisia + | Sp. Pl. +, Gen. Pl. ed. + |
| Artemisia abrotanum + | Sp. Pl. + |
| Artemisia absinthium + | Sp. Pl. + |
| Artemisia alaskana + | in N. L. Britton et al., N. Amer. Fl. + |
| Artemisia aleutica + | Bot. Not. + |
| Artemisia annua + | Sp. Pl. + |
| Artemisia arbuscula + | Trans. Amer. Philos. Soc., n. s. + |
| Artemisia arbuscula subsp. arbuscula + | Trans. Amer. Philos. Soc., n. s. + |
| Artemisia arbuscula subsp. longiloba + | Sida + |
| Artemisia arbuscula subsp. thermopola + | Rhodora + |
| Artemisia biennis + | Phytographia, + |
| Artemisia bigelovii + | in War Department [U.S.], Pacif. Railr. Rep. + |
| Artemisia borealis + | Reise Russ. Reich. + |
| Artemisia borealis subsp. borealis + | Reise Russ. Reich. + |
| Artemisia borealis subsp. richardsoniana + | in A. I. Tolmatchew, Fl. Arct. URSS + |
| Artemisia californica + | Linnaea + |
| Artemisia campestris + | Sp. Pl. + |
| Artemisia campestris subsp. canadensis + | Fl. Canada + |
| Artemisia campestris subsp. caudata + | Publ. Carnegie Inst. Wash. + |
| Artemisia campestris subsp. pacifica + | Publ. Carnegie Inst. Wash. + |
| Artemisia cana + | Fl. Amer. Sept. + |
| Artemisia cana subsp. bolanderi + | Contr. Dudley Herb. + |
| Artemisia cana subsp. cana + | Fl. Amer. Sept. + |
| Artemisia cana subsp. viscidula + | Rhodora + |
| Artemisia carruthii + | Trans. Kansas Acad. Sci. + |
| Artemisia douglasiana + | in W. J. Hooker, Fl. Bor.-Amer. + |
| Artemisia dracunculus + | Sp. Pl. + |
| Artemisia filifolia + | Ann. Lyceum Nat. Hist. New York + |
| Artemisia franserioides + | Bull. Torrey Bot. Club + |
| Artemisia frigida + | Sp. Pl. + |
| Artemisia furcata + | Fl. Taur.-Caucas. + |
| Artemisia globularia + | Nouv. Mém. Soc. Imp. Naturalistes Moscou + |
| Artemisia globularia subsp. globularia + | Nouv. Mém. Soc. Imp. Naturalistes Moscou + |
| Artemisia globularia subsp. lutea + | Sida + |
| Artemisia glomerata + | Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. + |
| Artemisia laciniata + | Sp. Pl. + |
| Artemisia laciniata subsp. laciniata + | Sp. Pl. + |
| Artemisia laciniata subsp. parryi + | Phytologia + |
| Artemisia longifolia + | Gen. N. Amer. Pl. + |
| Artemisia ludoviciana + | Gen. N. Amer. Pl. + |
| Artemisia ludoviciana subsp. albula + | Proc. Calif. Acad. Sci., ser. + |
| Artemisia ludoviciana subsp. candicans + | Proc. Calif. Acad. Sci., ser. + |
| Artemisia ludoviciana subsp. incompta + | Publ. Carnegie Inst. Wash. + |
| Artemisia ludoviciana subsp. ludoviciana + | Gen. N. Amer. Pl. + |
| Artemisia ludoviciana subsp. mexicana + | Proc. Calif. Acad. Sci., ser. + |
| Artemisia ludoviciana subsp. redolens + | Proc. Calif. Acad. Sci., ser. + |
| Artemisia michauxiana + | in W. J. Hooker, Fl. Bor.-Amer. + |
| Artemisia nesiotica + | Aliso + |
| Artemisia norvegica + | Novit. Fl. Svec., + |
| Artemisia norvegica subsp. saxatilis + | Publ. Carnegie Inst. Wash. + |
| Artemisia nova + | Bull. Torrey Bot. Club + |
| Artemisia packardiae + | Brittonia + |
| Artemisia palmeri + | Proc. Amer. Acad. Arts + |
| Artemisia papposa + | Leafl. W. Bot. + |
| Artemisia pattersonii + | in A. Gray et al., Syn. Fl. N. Amer. ed. + |
| Artemisia pedatifida + | Trans. Amer. Philos. Soc., n. s. + |
| Artemisia pontica + | Sp. Pl. + |
| Artemisia porteri + | Madroño + |
| Artemisia pycnocephala + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Artemisia pygmaea + | Proc. Amer. Acad. Arts + |
| Artemisia rigida + | Proc. Amer. Acad. Arts + |
| Artemisia rothrockii + | in W. H. Brewer et al., Bot. California + |
| Artemisia rupestris + | Sp. Pl. + |
| Artemisia scopulorum + | Proc. Acad. Nat. Sci. Philadelphia + |
| Artemisia senjavinensis + | Nouv. Mém. Soc. Imp. Naturalistes Moscou + |
| Artemisia serrata + | Gen. N. Amer. Pl. + |
| Artemisia spiciformis + | Bull. Torrey Bot. Club + |
| Artemisia stelleriana + | Nouv. Mém. Soc. Imp. Naturalistes Moscou + |
| Artemisia subg. Absinthium + | Syn. Gen. Compos., + |
| Artemisia subg. Artemisia + | Sp. Pl. +, Gen. Pl. ed. + |
| Artemisia subg. Drancunculus + | Bull. Soc. Imp. Naturalistes Moscou + |
| Artemisia subg. Tridentatae + | Amer. J. Bot. + |
| Artemisia suksdorfii + | Bull. Torrey Bot. Club + |
| Artemisia tilesii + | Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. + |
| Artemisia tridentata + | Trans. Amer. Philos. Soc., n. s. + |
| Artemisia tridentata subsp. parishii + | Publ. Carnegie Inst. Wash. + |
| Artemisia tridentata subsp. tridentata + | Trans. Amer. Philos. Soc., n. s. + |
| Artemisia tridentata subsp. vaseyana + | Rhodora + |
| Artemisia tridentata subsp. wyomingensis + | Rhodora + |
| Artemisia tripartita + | Mem. New York Bot. Gard. + |
| Artemisia tripartita subsp. rupicola + | Rhodora + |
| Artemisia tripartita subsp. tripartita + | Mem. New York Bot. Gard. + |
| Artemisia vulgaris + | Sp. Pl. + |
| Arthrocnemum + | Chenop. Monogr. Enum., + |
| Arthrocnemum subterminale + | J. Wash. Acad. Sci. + |
| Aruncus + | Opera Var., + |
| Aruncus dioicus + | Rhodora + |
| Aruncus dioicus var. acuminatus + | J. Jap. Bot. + |
| Aruncus dioicus var. dioicus + | Rhodora + |
| Aruncus dioicus var. pubescens + | Rhodora + |
| Aruncus dioicus var. vulgaris + | J. Jap. Bot. + |
| Asanthus + | Phytologia + |
| Asanthus squamulosus + | Phytologia + |
| Asarum + | Sp. Pl. +, Gen. Pl. ed. + |
| Asarum canadense + | Sp. Pl. + |
| Asarum caudatum + | Edwards's Bot. Reg. + |
| Asarum hartwegii + | Proc. Amer. Acad. Arts + |
| Asarum lemmonii + | Proc. Amer. Acad. Arts + |
| Asarum marmoratum + | Proc. Biol. Soc. Wash. + |
| Asarum wagneri + | Brittonia + |
| Aschisma + | Utkast Eur. Bladmoss., + |
| Aschisma kansanum + | Torreya + |
| Asimina + | Fam. Pl. + |
| Asimina incana + | J. Bot. + |
| Asimina longifolia + | Brittonia + |
| Asimina longifolia var. longifolia + | Brittonia + |
| Asimina longifolia var. spatulata + | Brittonia + |
| Asimina obovata + | Bull. Torrey Bot. Club + |
| Asimina parviflora + | Monogr. Anonac., + |
| Asimina pygmaea + | Monogr. Anonac., + |
| Asimina reticulata + | Fl. South. U.S. ed. + |
| Asimina tetramera + | Torreya + |
| Asimina triloba + | Monogr. Anonac., + |
| Asparagus + | Sp. Pl. +, Gen. Pl. ed. + |
| Asparagus aethiopicus + | Mant. Pl., + |
| Asparagus asparagoides + | Rep. Bot. Exch. Club Soc. Brit. Isles + |
| Asparagus officinalis + | Sp. Pl. + |
| Asparagus setaceus + | Bothalia + |
| Asphodelus + | Sp. Pl. +, Gen. Pl. ed. + |
| Asphodelus fistulosus + | Sp. Pl. + |
| Aspicarpa + | Mém. Mus. Hist. Nat. + |
| Aspicarpa hirtella + | Mém. Mus. Hist. Nat. + |
| Aspicarpa hyssopifolia + | Boston J. Nat. Hist. + |
| Aspidotis + | Gen. Fil. + |
| Aspidotis californica + | Gen. Fil. + |
| Aspidotis carlotta-halliae + | Amer. Fern J. + |
| Aspidotis densa + | Amer. Fern J. + |
| Asplenium + | Sp. Pl. + |
| Asplenium abscissum + | Sp. Pl. + |
| Asplenium adiantum-nigrum + | Sp. Pl. + |
| Asplenium adulterinum + | Höh. Sporenpfl. Deutschl. + |
| Asplenium auritum + | J. Bot. (Schrader) + |
| Asplenium bradleyi + | Bull. Torrey Bot. Club + |
| Asplenium cristatum + | in Lamarck et al.,Encycl. + |
| Asplenium dalhousiae + | Icon. Pl. + |
| Asplenium ebenoides + | Gard. Monthly & Hort. Advertiser + |
| Asplenium exiguum + | Ferns S. India + |
| Asplenium heterochroum + | Linnaea + |
| Asplenium monanthes + | Mant. Pl. + |
| Asplenium montanum + | Sp. Pl. + |
| Asplenium palmeri + | Contr. U.S. Natl. Herb. + |
| Asplenium pinnatifidum + | Gen. N. Amer. Pl. + |
| Asplenium platyneuron + | Prelim. Cat. + |
| Asplenium plenum + | Ferns S. E. States + |
| Asplenium pumilum + | Prodr. + |
| Asplenium resiliens + | Linnaea + |
| Asplenium rhizophyllum + | Sp. Pl. + |
| Asplenium ruta-muraria + | Sp. Pl. + |
| Asplenium scolopendrium + | Sp. Pl. + |
| Asplenium scolopendrium var. americanum + | Phytologia + |
| Asplenium septentrionale + | Deutschl. Fl. + |
| Asplenium serratum + | Sp. Pl. + |
| Asplenium trichomanes + | Sp. Pl. + |
| Asplenium trichomanes subsp. quadrivalens + | Ber. Deutsch. Bot. Ges. + |
| Asplenium trichomanes subsp. trichomanes + | Sp. Pl. + |
| Asplenium trichomanes-dentatum + | Sp. Pl. + |
| Asplenium trichomanes-ramosum + | Sp. Pl. + |
| Asplenium verecundum + | Bull. Torrey Bot. Club + |
| Asplenium vespertinum + | Bull. Torrey Bot. Club + |
| Asplenium ×biscayneanum + | Fern Bull. + |
| Asplenium ×curtissii + | Bull. Torrey Bot. Club + |
| Asplenium ×heteroresiliens + | Amer. Fern J. + |
| Aster + | Sp. Pl. +, Gen. Pl. ed. + |
| Aster alpinus + | Sp. Pl. + |
| Aster alpinus subsp. vierhapperi + | Biblioth. Bot. + |
| Aster tataricus + | Suppl. Pl., + |
| Asteraceae (tribe Heliantheae) subtribe Ambrosiinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Baeriinae + | Gen. Pl. + |
| Asteraceae (tribe Heliantheae) subtribe Chaenactidinae + | in N. L. Britton et al., N. Amer. Fl. + |
| Asteraceae (tribe Heliantheae) subtribe Clappiinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Coreopsidinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Dimeresiinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Ecliptinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Flaveriinae + | Syn. Gen. Compos., + |
| Asteraceae (tribe Heliantheae) subtribe Gaillardiinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Galinsoginae + | Gen. Pl. + |
| Asteraceae (tribe Heliantheae) subtribe Guardiolinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Helianthinae + | Fl. Belg., + |
| Asteraceae (tribe Heliantheae) subtribe Hymenopappinae + | in N. L. Britton et al., N. Amer. Fl. + |
| Asteraceae (tribe Heliantheae) subtribe Jaumeinae + | Gen. Pl. + |
| Asteraceae (tribe Heliantheae) subtribe Madiinae + | Gen. Pl. + |
| Asteraceae (tribe Heliantheae) subtribe Marshalliinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Melampodiinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Milleriinae + | Gen. Pl. + |
| Asteraceae (tribe Heliantheae) subtribe Pectidinae + | Linnaea + |
| Asteraceae (tribe Heliantheae) subtribe Peritylinae + | in N. L. Britton et al., N. Amer. Fl. + |
| Asteraceae (tribe Heliantheae) subtribe Polymniinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae + | Phytologia + |
| Asteraceae (tribe Heliantheae) subtribe Varillinae + | in V. H. Heywood et al., Biol. Chem. Compositae + |
| Asteraceae (tribe Heliantheae) subtribe Zaluzaniinae + | Phytologia + |
| Asteraceae tribe Anthemideae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Arctotideae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Astereae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Calenduleae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Cichorieae + | Syn. Pl. Fl. Gall., + |
| Asteraceae tribe Eupatorieae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Gnaphalieae + | Dict. Rais. Term. Bot., + |
| Asteraceae tribe Heliantheae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Inuleae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Mutisieae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Plucheeae + | Canad. J. Bot. + |
| Asteraceae tribe Senecioneae + | J. Phys. Chim. Hist. Nat. Arts + |
| Asteraceae tribe Vernonieae + | J. Phys. Chim. Hist. Nat. Arts + |
| Astilbe + | Prodr. Fl. Nepal., + |
| Astilbe biternata + | Bull. Torrey Bot. Club + |
| Astraea + | Arch. Naturgesch. (Berlin) + |
| Astraea lobata + | Arch. Naturgesch. (Berlin) + |
| Astranthium + | Trans. Amer. Philos. Soc., n. s. + |
| Astranthium ciliatum + | Sida + |
| Astranthium integrifolium + | Trans. Amer. Philos. Soc., n. s. + |
| Astranthium robustum + | Publ. Mus. Michigan State Univ., Biol. Ser. + |
| Astrolepis + | Amer. Fern J. + |
| Astrolepis cochisensis + | Amer. Fern J. + |
| Astrolepis cochisensis subsp. arizonica + | Amer. Fern J. + |
| Astrolepis cochisensis subsp. chihuahuensis + | Amer. Fern J. + |
| Astrolepis cochisensis subsp. cochisensis + | Amer. Fern J. + |
| Astrolepis integerrima + | Amer. Fern J. + |
| Astrolepis sinuata + | Amer. Fern J. + |
| Astrolepis sinuata subsp. mexicana + | Amer. Fern J. + |
| Astrolepis sinuata subsp. sinuata + | Amer. Fern J. + |
| Astrolepis windhamii + | Amer. Fern J. + |
| Astrophytum + | Cact. Gen. Sp. Nov., + |
| Astrophytum asterias + | Cactées, + |
| Atamisquea + | Bot. Misc. + |
| Atamisquea emarginata + | Bot. Misc. + |
| Athyrium + | Tent. Fl. Germ. + |
| Athyrium distentifolium + | Tent. fl. crypt. Boem. + |
| Athyrium distentifolium var. americanum + | Naturaliste Canad. + |
| Athyrium filix-femina + | Arch. Bot. (Leipzig) + |
| Athyrium filix-femina var. angustum + | Edinburgh New Philos. J. + |
| Athyrium filix-femina var. asplenioides + | Pap. Michigan Acad. Sci. + |
| Athyrium filix-femina var. californicum + | Rhodora + |
| Athyrium filix-femina var. cyclosorum + | Dist. Crypt. Vasc. Ross. + |
| Athysanus + | Bull. Calif. Acad. Sci. + |
| Athysanus pusillus + | Bull. Calif. Acad. Sci. + |
| Athysanus unilateralis + | Fl. W. Calif., + |
| Atrichoseris + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Atrichoseris platyphylla + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Atrichum + | Mag. Encycl. + |
| Atrichum altecristatum + | Trans. Kansas Acad. Sci. + |
| Atrichum angustatum + | Bryol. Europ. + |
| Atrichum crispulum + | Ann. Sci. Nat., Bot., sér. + |
| Atrichum crispum + | in A. Gray, Manual ed. + |
| Atrichum cylindricum + | Brittonia + |
| Atrichum flavisetum + | J. Proc. Linn. Soc., Bot., suppl. + |
| Atrichum selwynii + | Bot. Gaz. + |
| Atrichum tenellum + | Bryol. Europ. + |
| Atrichum undulatum + | Prodr. Aethéogam., + |
| Atriplex + | Sp. Pl. +, Gen. Pl. ed. + |
| Atriplex acanthocarpa + | Proc. Amer. Acad. Arts + |
| Atriplex acanthocarpa var. acanthocarpa + | Proc. Amer. Acad. Arts + |
| Atriplex acanthocarpa var. coahuilensis + | Great Basin Naturalist + |
| Atriplex amnicola + | Fl. Australia + |
| Atriplex argentea + | Gen. N. Amer. Pl. + |
| Atriplex argentea var. argentea + | Gen. N. Amer. Pl. + |
| Atriplex argentea var. hillmanii + | Contr. W. Bot. + |
| Atriplex argentea var. longitrichoma + | Rhodora + |
| Atriplex argentea var. mohavensis + | Gen. N. Amer. Pl. + |
| Atriplex argentea var. rydbergii + | Rhodora + |
| Atriplex californica + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Atriplex canescens + | Gen. N. Amer. Pl. + |
| Atriplex canescens var. canescens + | Gen. N. Amer. Pl. + |
| Atriplex canescens var. gigantea + | Great Basin Naturalist + |
| Atriplex canescens var. laciniata + | Fl. Calif. + |
| Atriplex canescens var. macilenta + | Fl. Calif. + |
| Atriplex confertifolia + | Proc. Amer. Acad. Arts + |
| Atriplex cordulata + | Pittonia + |
| Atriplex cordulata var. cordulata + | Pittonia + |
| Atriplex cordulata var. erecticaulis + | Rhodora + |
| Atriplex coronata + | Proc. Amer. Acad. Arts + |
| Atriplex coronata var. coronata + | Proc. Amer. Acad. Arts + |
| Atriplex coronata var. notatior + | Fl. Calif. + |
| Atriplex coronata var. vallicola + | Rhodora + |
| Atriplex corrugata + | Bot. Gaz. + |
| Atriplex coulteri + | Syn. Pl. + |
| Atriplex covillei + | Contr. Gray Herb. + |
| Atriplex dioica + | Amer. Monthly Mag. & Crit. Rev. + |
| Atriplex elegans + | Syn. Pl. + |
| Atriplex elegans var. elegans + | Syn. Pl. + |
| Atriplex elegans var. fasciculata + | Contr. W. Bot. + |
| Atriplex fruticulosa + | Pittonia + |
| Atriplex gardneri + | Syn. Pl. + |
| Atriplex gardneri var. aptera + | Great Basin Naturalist + |
| Atriplex gardneri var. bonnevillensis + | Great Basin Naturalist + |
| Atriplex gardneri var. cuneata + | Great Basin Naturalist + |
| Atriplex gardneri var. falcata + | Great Basin Naturalist + |
| Atriplex gardneri var. gardneri + | Syn. Pl. + |
| Atriplex gardneri var. utahensis + | Vasc. Pl. Wyoming, + |
| Atriplex gardneri var. welshii + | Great Basin Naturalist + |
| Atriplex garrettii + | Bull. Torrey Bot. Club + |
| Atriplex garrettii var. garrettii + | Bull. Torrey Bot. Club + |
| Atriplex garrettii var. navajoensis + | Great Basin Naturalist + |
| Atriplex glabriuscula + | Fl. Shetland, + |
| Atriplex glabriuscula var. acadiensis + | Rhodora + |
| Atriplex glabriuscula var. franktonii + | Rhodora + |
| Atriplex glabriuscula var. glabriuscula + | Fl. Shetland, + |
| Atriplex gmelinii + | Mém. Acad. Imp. Sci. St. Pétersbourg, Sér. + |
| Atriplex gmelinii var. alaskensis + | Rhodora + |
| Atriplex gmelinii var. gmelinii + | Mém. Acad. Imp. Sci. St. Pétersbourg, Sér. + |
| Atriplex graciliflora + | Proc. Cali f. Acad. Sci., ser. + |
| Atriplex heterosperma + | Beitr. Fl. Russl., + |
| Atriplex holocarpa + | Rep. Pl. Babbage’s Exped., + |
| Atriplex hortensis + | Sp. Pl. + |
| Atriplex hymenelytra + | Proc. Amer. Acad. Arts + |
| Atriplex joaquiniana + | Proc. Biol. Soc. Wash. + |
| Atriplex klebergorum + | SouthW. Naturalist + |
| Atriplex laciniata + | Sp. Pl. + |
| Atriplex lentiformis + | Proc. Amer. Acad. Arts + |
| Atriplex leucophylla + | Syn. Pl. + |
| Atriplex lindleyi + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Atriplex linearis + | Proc. Amer. Acad. Arts + |
| Atriplex littoralis + | Sp. Pl. + |
| Atriplex matamorensis + | Proc. Amer. Acad. Arts + |
| Atriplex mucronata + | Amer. Monthly Mag. & Crit. Rev. + |
| Atriplex nudicaulis + | L sn. Zurn. + |
| Atriplex nummularia + | in T. L. Mitchell, J. Exped. Trop. Australia, + |
| Atriplex oblongifolia + | Descr. Icon. Pl. Hung. + |
| Atriplex obovata + | Chenop. Monogr. Enum., + |
| Atriplex pacifica + | Proc. Biol. Soc. Wash., + |
| Atriplex parishii + | Proc. Amer. Acad. Arts + |
| Atriplex parishii var. depressa + | Rhodora + |
| Atriplex parishii var. minuscula + | Rhodora + |
| Atriplex parishii var. parishii + | Proc. Amer. Acad. Arts + |
| Atriplex parishii var. persistens + | Rhodora + |
| Atriplex parishii var. subtilis + | Rhodora + |
| Atriplex parryi + | Proc. Amer. Acad. Arts + |
| Atriplex patula + | Sp. Pl. + |
| Atriplex pentandra + | in N. L. Britton et al., N. Amer. Fl. + |
| Atriplex phyllostegia + | Proc. Amer. Acad. Arts + |
| Atriplex pleiantha + | Madroño + |
| Atriplex polycarpa + | Proc. Amer. Acad. Arts + |
| Atriplex powellii + | Proc. Amer. Acad. Arts + |
| Atriplex powellii var. minuticarpa + | Rhodora + |
| Atriplex powellii var. powellii + | Proc. Amer. Acad. Arts + |
| Atriplex prostrata + | in J. Lamarck and A. P. de Candolle, Fl. Franç. ed. + |
| Atriplex pusilla + | Proc. Amer. Acad. Arts + |
| Atriplex rosea + | Sp. Pl. ed. + |
| Atriplex saccaria + | Proc. Amer. Acad. Arts + |
| Atriplex saccaria var. asterocarpa + | Rhodora + |
| Atriplex saccaria var. cornuta + | Rhodora + |
| Atriplex saccaria var. saccaria + | Proc. Amer. Acad. Arts + |
| Atriplex sect. Atriplex + | Sp. Pl. +, Gen. Pl. ed. + |
| Atriplex sect. Covilleiae + | Rhodora + |
| Atriplex sect. Dialysex + | Chenop. Monogr. Enum., + |
| Atriplex sect. Endolepis + | in I. J. Bassett et al., Atriplex Canada, + |
| Atriplex sect. Obione + | Rhodora + |
| Atriplex sect. Phyllostegiae + | Rhodora + |
| Atriplex sect. Pleianthae + | Rhodora + |
| Atriplex sect. Sclerocalymma + | in P. F. A. Ascherson et al., Syn. Mitteleur. Fl. + |
| Atriplex sect. Semibaccata + | in H. G. A. Engler et al., Nat. Pflanzenfam. ed. + |
| Atriplex sect. Spongiocarpus + | Verh. Zool.-Bot. Ges. Wien + |
| Atriplex sect. Teutliopsis + | Fl. Belg., + |
| Atriplex semibaccata + | Prodr., + |
| Atriplex serenana + | Fl. Los Angeles, + |
| Atriplex serenana var. davidsonii + | Man. S. Calif. Bot., + |
| Atriplex serenana var. serenana + | Fl. Los Angeles, + |
| Atriplex spinifera + | Contr. Gray Herb. + |
| Atriplex suberecta + | Bothalia + |
| Atriplex subg. Atriplex + | Sp. Pl. +, Gen. Pl. ed. + |
| Atriplex subg. Obione + | Rhodora + |
| Atriplex subg. Pterochiton + | Rhodora + |
| Atriplex subsect. Arenariae + | Rhodora + |
| Atriplex subsect. Argenteae + | Rhodora + |
| Atriplex subsect. Californicae + | Rhodora + |
| Atriplex subsect. Graciliflorae + | Rhodo ra + |
| Atriplex subsect. Leucophyllae + | Rhodora + |
| Atriplex subsect. Pusillae + | Rhod ora + |
| Atriplex subsect. Saccariae + | Rhodora + |
| Atriplex subsect. Truncatae + | Rhodo ra + |
| Atriplex subsect. Wolfianae + | Rhodora + |
| Atriplex suckleyi + | Mem. New York Bot. Gard. + |
| Atriplex tatarica + | Sp. Pl. + |
| Atriplex torreyi + | Proc. Amer. Acad. Arts + |
| Atriplex torreyi var. griffithsii + | Amer. Midl. Naturalist + |
| Atriplex torreyi var. torreyi + | Proc. Amer. Acad. Arts + |
| Atriplex truncata + | Proc. Amer. Acad. Arts + |
| Atriplex tularensis + | Contr. U.S. Natl. Herb. + |
| Atriplex watsonii + | Fl. Los Angeles, + |
| Atriplex wolfii + | Proc. Amer. Acad. Arts + |
| Atriplex wolfii var. tenuissima + | Rhodora + |
| Atriplex wolfii var. wolfii + | Proc. Amer. Acad. Arts + |
| Atriplex wrightii + | Proc. Amer. Acad. Arts + |
| Aubrieta + | Fam. Pl. + |
| Aubrieta deltoidea + | Syst. Nat. + |
| Aucuba + | Nov. Gen. Pl., + |
| Aucuba japonica + | Nov. Gen. Pl., + |
| Aulacomnium + | Sp. Musc. Frond. Suppl. + |
| Aulacomnium acuminatum + | Enum. Bryin. Exot., + |
| Aulacomnium androgynum + | Sp. Musc. Frond. Suppl. + |
| Aulacomnium palustre + | Sp. Musc. Frond. Suppl. + |
| Aulacomnium turgidum + | Sp. Musc. Frond. Suppl. + |
| Aureolaria + | New Fl. + |
| Aureolaria flava + | Rep. (Annual) Michigan Acad. Sci. + |
| Aureolaria grandiflora + | Rhodora + |
| Aureolaria levigata + | New Fl. + |
| Aureolaria patula + | Proc. Acad. Nat. Sci. Philadelphia + |
| Aureolaria pectinata + | Bull. Torrey Bot. Club + |
| Aureolaria pedicularia + | Bull. Torrey Bot. Club + |
| Aureolaria virginica + | Bull. Torrey Bot. Club + |
| Aurinia + | J. Bot. Agric. + |
| Aurinia petraea + | Enum. Pl. Transsilv., + |
| Aurinia saxatilis + | J. Bot. Agric. + |
| Axyris + | Sp. Pl. +, Gen. Pl. ed. + |
| Axyris amaranthoides + | Sp. Pl. + |
| Ayenia + | Kongl. Svenska Vetensk. Acad. Handl. + |
| Ayenia compacta + | Contr. U.S. Natl. Herb. + |
| Ayenia euphrasiifolia + | Cat. Pl. Cub., + |
| Ayenia filiformis + | Proc. Amer. Acad. Arts + |
| Ayenia jaliscana + | Proc. Amer. Acad. Arts + |
| Ayenia limitaris + | Opera Lilloana + |
| Ayenia microphylla + | Smithsonian Contr. Knowl. + |
| Ayenia pilosa + | Opera Lilloana + |
| Azolla + | in Lamarck et al.,Encycl. + |
| Azolla caroliniana + | Sp. Pl. + |
| Azolla filiculoides + | in Lamarck et al.,Encycl. + |
| Azolla mexicana + | Abh. Königl. Böhm. Ges. Wiss. + |
| Baccharis + | Sp. Pl. +, Gen. Pl. ed. + |
| Baccharis angustifolia + | Fl. Bor.-Amer. + |
| Baccharis bigelovii + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Baccharis brachyphylla + | Smithsonian Contr. Knowl. + |
| Baccharis dioica + | Symb. Bot. + |
| Baccharis douglasii + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Baccharis glomeruliflora + | Syn. Pl. + |
| Baccharis halimifolia + | Sp. Pl. + |
| Baccharis havardii + | in A. Gray et al., Syn. Fl. N. Amer. + |
| Baccharis malibuensis + | Aliso + |
| Baccharis neglecta + | in N. L. Britton and A. Brown, Ill. Fl. N. U.S. + |
| Baccharis pilularis + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Baccharis pilularis subsp. consanguinea + | Occas. Pap. Rancho Santa Ana Bot. Gard. + |
| Baccharis pilularis subsp. pilularis + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Baccharis plummerae + | Proc. Amer. Acad. Arts + |
| Baccharis plummerae subsp. glabrata + | Vasc. Pl. San Luis Obispo Co., + |
| Baccharis plummerae subsp. plummerae + | Proc. Amer. Acad. Arts + |
| Baccharis pteronioides + | in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. + |
| Baccharis salicifolia + | Syn. Pl. + |
| Baccharis salicina + | Fl. N. Amer. + |
| Baccharis sarothroides + | Proc. Amer. Acad. Arts + |
| Baccharis sergiloides + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Baccharis texana + | Mem. Amer. Acad. Arts, n. s. + |
| Baccharis thesioides + | in A. von Humboldt et al., Nov. Gen. Sp. + |
| Baccharis vanessae + | Phytologia + |
| Baccharis wrightii + | Smithsonian Contr. Knowl. + |
| Bacopa + | Hist. Pl. Guiane + |
| Bacopa caroliniana + | Rhodora + |
| Bacopa egensis + | Proc. Acad. Nat. Sci. Philadelphia + |
| Bacopa eisenii + | Proc. Acad. Nat. Sci. Philadelphia + |
| Bacopa innominata + | Revista Soc. Cub. Bot. + |
| Bacopa monnieri + | Nat. Pflanzenfam. + |
| Bacopa repens + | Nat. Pflanzenfam. + |
| Bacopa rotundifolia + | Nat. Pflanzenfam. + |
| Bahia + | Gen. Sp. Pl., + |
| Bahia absinthifolia + | Pl. Hartw., + |
| Bahia bigelovii + | in W. H. Emory, Rep. U.S. Mex. Bound. + |
| Bahia biternata + | Smithsonian Contr. Knowl. + |
| Bahia pedata + | Smithsonian Contr. Knowl. + |
| Bahiopsis + | Proc. Calif. Acad. Sci. + |
| Bahiopsis laciniata + | Bot. J. Linn. Soc. + |
| Bahiopsis parishii + | Bot. J. Linn. Soc. + |
| Bahiopsis reticulata + | Bot. J. Linn. Soc. + |
| Baileya + | in W. H. Emory, Not. Milit. Recon., + |
| Baileya multiradiata + | Mem. Amer. Acad. Arts, n. s. + |
| Baileya pauciradiata + | Mem. Amer. Acad. Arts, n. s. + |
| Baileya pleniradiata + | Mem. Amer. Acad. Arts, n. s. + |
| Balduina + | Gen. N. Amer. Pl. + |
| Balduina angustifolia + | Proc. Amer. Acad. Arts + |
| Balduina atropurpurea + | Bull. Torrey Bot. Club + |
| Balduina uniflora + | Gen. N. Amer. Pl. + |
| Balsamorhiza + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza careyana + | Mem. Amer. Acad. Arts, n. s. + |
| Balsamorhiza deltoidea + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza hispidula + | Ann. Missouri Bot. Gard. + |
| Balsamorhiza hookeri + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza incana + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza lanata + | Phytologia + |
| Balsamorhiza macrolepis + | Ann. Missouri Bot. Gard. + |
| Balsamorhiza macrophylla + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza rosea + | Bot. Gaz. + |
| Balsamorhiza sagittata + | Trans. Amer. Philos. Soc., n. s. + |
| Balsamorhiza sericea + | Phytologia |