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Penstemon heterophyllus var. australis, Penstemon heterophyllus var. heterophyllus, Penstemon heterophyllus var. purdyi, Penstemon hirsutus, Penstemon humilis, Penstemon humilis var. brevifolius, Penstemon humilis var. humilis, Penstemon humilis var. obtusifolius, Penstemon idahoensis, Penstemon immanifestus, Penstemon incertus, Penstemon inflatus, Penstemon jamesii, Penstemon janishiae, Penstemon kingii, Penstemon kralii, Penstemon labrosus, Penstemon laetus, Penstemon laetus var. laetus, Penstemon laetus var. leptosepalus, Penstemon laetus var. sagittatus, Penstemon laevigatus, Penstemon laevis, Penstemon lanceolatus, Penstemon laricifolius, Penstemon laricifolius var. exilifolius, Penstemon laricifolius var. laricifolius, Penstemon laxiflorus, Penstemon laxus, Penstemon leiophyllus, Penstemon leiophyllus var. francisci-pennellii, Penstemon leiophyllus var. keckii, Penstemon leiophyllus var. leiophyllus, Penstemon lemhiensis, Penstemon lentus, Penstemon lentus var. albiflorus, Penstemon lentus var. lentus, Penstemon leonardii, Penstemon leonardii var. higginsii, Penstemon leonardii var. leonardii, Penstemon leonardii var. patricus, Penstemon linarioides, Penstemon linarioides var. coloradoensis, Penstemon linarioides var. linarioides, Penstemon linarioides var. maguirei, Penstemon linarioides var. sileri, Penstemon longiflorus, Penstemon lyallii, Penstemon marcusii, Penstemon mensarum, Penstemon metcalfei, Penstemon miser, Penstemon moffatii, Penstemon monoensis, Penstemon montanus, Penstemon montanus var. idahoensis, Penstemon montanus var. montanus, Penstemon moriahensis, Penstemon mucronatus, Penstemon multiflorus, Penstemon murrayanus, Penstemon nanus, Penstemon navajoa, Penstemon neomexicanus, Penstemon neotericus, Penstemon newberryi, Penstemon newberryi var. berryi, Penstemon newberryi var. newberryi, Penstemon newberryi var. sonomensis, Penstemon nitidus, Penstemon nitidus var. nitidus, Penstemon nitidus var. polyphyllus, Penstemon nudiflorus, Penstemon oklahomensis, Penstemon oliganthus, Penstemon ophianthus, Penstemon osterhoutii, Penstemon ovatus, Penstemon pachyphyllus, Penstemon pachyphyllus var. congestus, Penstemon pachyphyllus var. pachyphyllus, Penstemon pahutensis, Penstemon pallidus, Penstemon palmeri, Penstemon palmeri var. eglandulosus, Penstemon palmeri var. macranthus, Penstemon palmeri var. palmeri, Penstemon papillatus, Penstemon parryi, Penstemon parvulus, Penstemon parvus, Penstemon patens, Penstemon payettensis, Penstemon paysoniorum, Penstemon peckii, Penstemon penlandii, Penstemon pennellianus, Penstemon perpulcher, Penstemon personatus, Penstemon petiolatus, Penstemon pinifolius, Penstemon pinorum, Penstemon platyphyllus, Penstemon pratensis, Penstemon procerus, Penstemon procerus var. aberrans, Penstemon procerus var. brachyanthus, Penstemon procerus var. formosus, Penstemon procerus var. modestus, Penstemon procerus var. procerus, Penstemon procerus var. tolmiei, Penstemon pruinosus, Penstemon pseudoputus, Penstemon pseudospectabilis, Penstemon pseudospectabilis var. connatifolius, Penstemon pseudospectabilis var. pseudospectabilis, Penstemon pudicus, Penstemon pumilus, Penstemon purpusii, Penstemon putus, Penstemon radicosus, Penstemon rattanii, Penstemon rattanii var. kleei, Penstemon rattanii var. rattanii, Penstemon retrorsus, Penstemon rhizomatosus, Penstemon richardsonii, Penstemon richardsonii var. curtiflorus, Penstemon richardsonii var. dentatus, Penstemon richardsonii var. richardsonii, Penstemon roezlii, Penstemon rostriflorus, Penstemon rubicundus, Penstemon rupicola, Penstemon rydbergii, Penstemon rydbergii var. aggregatus, Penstemon rydbergii var. oreocharis, Penstemon rydbergii var. rydbergii, Penstemon saxosorum, Penstemon scapoides, Penstemon scariosus, Penstemon scariosus var. albifluvis, Penstemon scariosus var. cyanomontanus, Penstemon scariosus var. garrettii, Penstemon scariosus var. scariosus, Penstemon sect. Ambigui, Penstemon sect. Baccharifolii, Penstemon sect. Bridgesiani, Penstemon sect. Caespitosi, Penstemon sect. Chamaeleon, Penstemon sect. Coerulei, Penstemon sect. Cristati, Penstemon sect. Dissecti, Penstemon sect. Elmigera, Penstemon sect. Erianthera, Penstemon sect. Gentianoides, Penstemon sect. Glabri, Penstemon sect. Penstemon, Penstemon sect. Petiolati, Penstemon sect. Saccanthera, Penstemon sect. Spectabiles, Penstemon secundiflorus, Penstemon secundiflorus var. secundiflorus, Penstemon secundiflorus var. versicolor, Penstemon seorsus, Penstemon sepalulus, Penstemon serrulatus, Penstemon smallii, Penstemon spatulatus, Penstemon speciosus, Penstemon spectabilis, Penstemon spectabilis var. spectabilis, Penstemon spectabilis var. subviscosus, Penstemon stenophyllus, Penstemon stephensii, Penstemon strictiformis, Penstemon strictus, Penstemon subg. Dasanthera, Penstemon subg. Penstemon, Penstemon subglaber, Penstemon subserratus, Penstemon subulatus, Penstemon sudans, Penstemon superbus, Penstemon tenuiflorus, Penstemon tenuis, Penstemon teucrioides, Penstemon thompsoniae, Penstemon thurberi, Penstemon tidestromii, Penstemon tiehmii, Penstemon tracyi, Penstemon triflorus, Penstemon triflorus var. integrifolius, Penstemon triflorus var. triflorus, Penstemon triphyllus, Penstemon tubaeflorus, Penstemon uintahensis, Penstemon utahensis, Penstemon venustus, Penstemon virens, Penstemon virgatus, Penstemon virgatus var. asa-grayi, Penstemon virgatus var. virgatus, Penstemon wardii, Penstemon washingtonensis, Penstemon watsonii, Penstemon whippleanus, Penstemon wilcoxii, Penstemon wrightii, Penstemon xylus, Penstemon yampaënsis, Phryma, Phryma leptostachya, Phryma leptostachya var. leptostachya, Phrymaceae, Plantaginaceae, Plantago, Plantago afra, Plantago argyrea, Plantago aristata, Plantago australis, Plantago canescens, Plantago cordata, Plantago coronopus, Plantago elongata, Plantago erecta, Plantago eriopoda, Plantago firma, Plantago floccosa, Plantago helleri, Plantago heterophylla, Plantago hookeriana, Plantago indica, Plantago lanceolata, Plantago macrocarpa, Plantago major, Plantago maritima, Plantago media, Plantago ovata, Plantago patagonica, Plantago pusilla, Plantago rhodosperma, Plantago rugelii, Plantago sempervirens, Plantago sparsiflora, Plantago subnuda, Plantago tweedyi, Plantago virginica, Plantago wrightiana, Polypremum, Polypremum procumbens, Pseudorontium, Pseudorontium cyathiferum, Rhinanthus, Rhinanthus major, Rhinanthus minor, Rhinanthus minor subsp. groenlandicus, Rhinanthus minor subsp. minor, Russelia, Russelia equisetiformis, Sairocarpus, Sairocarpus cornutus, Sairocarpus cornutus subsp. cornutus, Sairocarpus cornutus subsp. leptaleus, Sairocarpus coulterianus, Sairocarpus kingii, Sairocarpus multiflorus, Sairocarpus nuttallianus, Sairocarpus subcordatus, Sairocarpus vexillocalyculatus, Sairocarpus vexillocalyculatus subsp. breweri, Sairocarpus vexillocalyculatus subsp. intermedius, Sairocarpus vexillocalyculatus subsp. vexillocalyculatus, Sairocarpus virga, Sairocarpus watsonii, Schistophragma, Schistophragma intermedium, Schwalbea, Schwalbea americana, Scoparia, Scoparia dulcis, Scoparia montevidensis, Scrophularia, Scrophularia atrata, Scrophularia californica, Scrophularia desertorum, Scrophularia laevis, Scrophularia lanceolata, Scrophularia macrantha, Scrophularia marilandica, Scrophularia montana, Scrophularia parviflora, Scrophularia peregrina, Scrophularia villosa, Scrophulariaceae, Sesamum, Sesamum indicum, Seymeria, Seymeria bipinnatisecta, Seymeria cassioides, Seymeria falcata, Seymeria falcata var. falcata, Seymeria pectinata, Seymeria pectinata subsp. pectinata, Seymeria pectinata subsp. peninsularis, Seymeria scabra, Sophronanthe, Sophronanthe hispida, Sophronanthe pilosa, Stemodia, Stemodia durantifolia, Stemodia lanata, Stemodia schottii, Striga, Striga asiatica, Striga gesnerioides, Synthyris, Synthyris alpina, Synthyris borealis, Synthyris bullii, Synthyris canbyi, Synthyris cordata, Synthyris dissecta, Synthyris laciniata, Synthyris lanuginosa, Synthyris missurica, Synthyris missurica subsp. major, Synthyris missurica subsp. missurica, Synthyris missurica subsp. stellata, Synthyris oblongifolia, Synthyris pinnatifida, Synthyris plantaginea, Synthyris platycarpa, Synthyris ranunculina, Synthyris reniformis, Synthyris ritteriana, Synthyris rubra, Synthyris schizantha, Synthyris wyomingensis, Tetrachondraceae, Tonella, Tonella floribunda, Tonella tenella, Torenia, Torenia fournieri, Triphysaria, Triphysaria eriantha, Triphysaria eriantha subsp. eriantha, Triphysaria eriantha subsp. rosea, Triphysaria floribunda, Triphysaria micrantha, Triphysaria pusilla, Triphysaria versicolor, Triphysaria versicolor subsp. faucibarbata, Triphysaria versicolor subsp. versicolor, Verbascum, Verbascum blattaria, Verbascum bombyciferum, Verbascum densiflorum, Verbascum lychnitis, Verbascum lychnitis subsp. lychnitis, Verbascum nigrum, Verbascum phlomoides, Verbascum phoeniceum, Verbascum phoeniceum subsp. phoeniceum, Verbascum pulverulentum, Verbascum sinuatum, Verbascum sinuatum var. sinuatum, Verbascum speciosum, Verbascum speciosum subsp. speciosum, Verbascum thapsus, Verbascum thapsus subsp. thapsus, Verbascum virgatum, Veronica, Veronica agrestis, Veronica alpina, Veronica americana, Veronica anagallis-aquatica, Veronica argute-serrata, Veronica arvensis, Veronica beccabunga, Veronica beccabunga subsp. beccabunga, Veronica biloba, Veronica catenata, Veronica chamaedrys, Veronica copelandii, Veronica cusickii, Veronica cymbalaria, Veronica dillenii, Veronica filiformis, Veronica fruticans, Veronica grandiflora, Veronica hederifolia, Veronica longifolia, Veronica officinalis, Veronica peregrina, Veronica persica, Veronica polita, Veronica scutellata, Veronica serpyllifolia, Veronica spicata, Veronica stelleri, Veronica sublobata, Veronica teucrium, Veronica triloba, Veronica triphyllos, Veronica undulata, Veronica verna, Veronica wormskjoldii, Veronica wormskjoldii subsp. nutans, Veronica wormskjoldii subsp. wormskjoldii, Veronicastrum, Veronicastrum virginicum