genus
A Abies bifolia, Abronia elliptica, fragrans, latifolia, villosa, Abutilon malacum, theophrasti, Acacia greggii, neovernicosa, rigidula,
Acer glabrum, negundo, Achillea millefolium, Achillea filipendulina, Achnatherum hymenoides,
Acmispon greenei, Aconitum columbianum, Actaea pachypoda, rubra,
Aesculus hippocastamum, pavia, Agastache urticifolia, Agave havardiana, lechuguilla, victoriae-reginae,
Agoseris aurantiaca, glauca var. dasycephala, glauca var. glauca, heterophylla var. heterophylla, parviflora, Agrimonia striata,
Agropyron cristatum, Ajuga reptans, Alectoriacae sarmentosa, Aliciella pinnatifida,
Allenrolfea occidentalis, Alliaria petiolata, Allionia incarnata subsp. villosa,
Allium accuminatum, bisceptrum, brevistylum, campanulatum, cernuum, geyeri, macropetalum, schoenoprasum, textile,
Allowissadula holosericea, Alnus incana var. tenuifolia, Alopecurus aequalis, pratensis, Aloysia gratissima,
Alyssum desertorum, simplex, Amauriopsis dissecta,
Ambrosia psilostachya, salsola var. salsola, tomentosa, trifida, Amelanchier alnifolia, utahensis,
Amorpha fruticosa, Amsinckia menziesii, tessellata, Amsonia longiflora, Anaphalis margaritacea,
Andropogon gerardii, Androsace septentrionalis,
Anemonidium canadensis, Anemone canadensis, cylindrica, multifida, narcissiflora var. zephyra, quinquefolia, tuberosa,
Anemonella thalictroides, Anemopsis californica, Angelica ampla, arguta, breweri, grayi,
Antennaria anaphaloides, corymbosa, dimorpha, media, microphylla, neglecta, parvifolia, plantaginifolia, pulcherrima, rosea, solitaria,
Anticlea elegans, Apocynum androsaemifolium,cannabinum,
Aquilegia buergeriana, caerulea, elegantula, flavescens, formosa, laramiensis, saximontana,
Arabis pycnocarpa, Aralia nudicaulis, Arbutus xalapensis, Arctium minus, Arctostaphylos uva-ursi,
Arenaria lanuginosa var. saxosa, Argemone albiflora, chisosensis, munita, polyanthemos,
Arisaema triphyllum, Aristida purpurea, Arnica cordifolia, corymbosa, fulgens, latifolia, mollis, rydbergii, sororia, Arnica parryi,
Artemisia arctica, campestris var. pacifica, dracunculus, frigida, ludoviciana, scopulorum, tridentata,
Asclepias asperula, asperula ssp. asperula, englemanniana, fascicularis, incarnata, pumila, speciosa,
stenophylla, subverticillata, viridiflora, Asparagus officinalis, Asperugo procumbens,
Astragalus agrestis, allochrous, alpinus, australis, bisulcatus, canadensis, cicer, convallarius, crassicarpus, desperatus, drummondii,
eastwoodiae, flavus var. flavus, flexuosus, gilviflorus, gracilis, laxmannii var. robustior, lentiginosus var. palans,
leptocarpus, lotiflorus, miser, missouriensis, mollissimus, mollissimus var. bigelovii, mollissimus var. thompsoniae,
parryi, pectinatus, preussii, purshii, sericoleucus, shortianus, spatulatus, tenellus, tephrodes, tridactylicus, whitneyi, wingatanus,
Atrichoseris platyphylla, Atriplex canescens, confertifolia, hymenelytra
Acer glabrum, negundo, Achillea millefolium, Achillea filipendulina, Achnatherum hymenoides,
Acmispon greenei, Aconitum columbianum, Actaea pachypoda, rubra,
Aesculus hippocastamum, pavia, Agastache urticifolia, Agave havardiana, lechuguilla, victoriae-reginae,
Agoseris aurantiaca, glauca var. dasycephala, glauca var. glauca, heterophylla var. heterophylla, parviflora, Agrimonia striata,
Agropyron cristatum, Ajuga reptans, Alectoriacae sarmentosa, Aliciella pinnatifida,
Allenrolfea occidentalis, Alliaria petiolata, Allionia incarnata subsp. villosa,
Allium accuminatum, bisceptrum, brevistylum, campanulatum, cernuum, geyeri, macropetalum, schoenoprasum, textile,
Allowissadula holosericea, Alnus incana var. tenuifolia, Alopecurus aequalis, pratensis, Aloysia gratissima,
Alyssum desertorum, simplex, Amauriopsis dissecta,
Ambrosia psilostachya, salsola var. salsola, tomentosa, trifida, Amelanchier alnifolia, utahensis,
Amorpha fruticosa, Amsinckia menziesii, tessellata, Amsonia longiflora, Anaphalis margaritacea,
Andropogon gerardii, Androsace septentrionalis,
Anemonidium canadensis, Anemone canadensis, cylindrica, multifida, narcissiflora var. zephyra, quinquefolia, tuberosa,
Anemonella thalictroides, Anemopsis californica, Angelica ampla, arguta, breweri, grayi,
Antennaria anaphaloides, corymbosa, dimorpha, media, microphylla, neglecta, parvifolia, plantaginifolia, pulcherrima, rosea, solitaria,
Anticlea elegans, Apocynum androsaemifolium,cannabinum,
Aquilegia buergeriana, caerulea, elegantula, flavescens, formosa, laramiensis, saximontana,
Arabis pycnocarpa, Aralia nudicaulis, Arbutus xalapensis, Arctium minus, Arctostaphylos uva-ursi,
Arenaria lanuginosa var. saxosa, Argemone albiflora, chisosensis, munita, polyanthemos,
Arisaema triphyllum, Aristida purpurea, Arnica cordifolia, corymbosa, fulgens, latifolia, mollis, rydbergii, sororia, Arnica parryi,
Artemisia arctica, campestris var. pacifica, dracunculus, frigida, ludoviciana, scopulorum, tridentata,
Asclepias asperula, asperula ssp. asperula, englemanniana, fascicularis, incarnata, pumila, speciosa,
stenophylla, subverticillata, viridiflora, Asparagus officinalis, Asperugo procumbens,
Astragalus agrestis, allochrous, alpinus, australis, bisulcatus, canadensis, cicer, convallarius, crassicarpus, desperatus, drummondii,
eastwoodiae, flavus var. flavus, flexuosus, gilviflorus, gracilis, laxmannii var. robustior, lentiginosus var. palans,
leptocarpus, lotiflorus, miser, missouriensis, mollissimus, mollissimus var. bigelovii, mollissimus var. thompsoniae,
parryi, pectinatus, preussii, purshii, sericoleucus, shortianus, spatulatus, tenellus, tephrodes, tridactylicus, whitneyi, wingatanus,
Atrichoseris platyphylla, Atriplex canescens, confertifolia, hymenelytra
B Bahia absinthifolia, pedata, Baileya multiradiata, Balsamorhiza sagittata, Barbarea orthoceras, vulgaris, Bassia scoparia,
Bastardia viscosa, Berlandiera lyrata, Berteroa incana, Besseya alpina, plantaginea, wyomingensis,
Bidens bigelovii, pilosa, Bidens frondosa, Bistorta bistortoides, vivipara, Blepharipappus scaber, Blitum capitatum ssp. capitatum,
virgatum, Boechera fendleri, grahamii, retrofracta, stricta, Boerhavia coccinea, Bouteloua curtipendula, gracilis, Brassica juncea,
Brickellia californica, eupatorioides, floribunda, grandiflora, rusbyi,
Bromus inermis, japonicus, tectorum, Bryum anatum, Buchloe dactyloides, Buddleja marrubiifolia
Bastardia viscosa, Berlandiera lyrata, Berteroa incana, Besseya alpina, plantaginea, wyomingensis,
Bidens bigelovii, pilosa, Bidens frondosa, Bistorta bistortoides, vivipara, Blepharipappus scaber, Blitum capitatum ssp. capitatum,
virgatum, Boechera fendleri, grahamii, retrofracta, stricta, Boerhavia coccinea, Bouteloua curtipendula, gracilis, Brassica juncea,
Brickellia californica, eupatorioides, floribunda, grandiflora, rusbyi,
Bromus inermis, japonicus, tectorum, Bryum anatum, Buchloe dactyloides, Buddleja marrubiifolia
C Caesalpinia gilliessii, jamesii, Cakile edentula, Calliandra eriophylla, Calochortus bruneaunis, gunnisonii, minimus, nuttallii,
Caltha leptosepala, Calycanthus floridus, Calycoseris wrightii,
Calypso bulbosa, Calyptridium umbellatum, Calystegia occidentalis, Camassia quamash, Camelina microcarpa,
Campanula glomerata, parryi, prenanthoides, rapunculoides, rotundifolia, uniflora, Capsella bursa-pastoris,
Caragana arborescens, Cardamine breweri, concatenata, cordifolia,
Carduus nutans, Carex aurea, ebenea, heteroneura, nebrascensis, Carnegiea gigantea,
Carpobrotus chilensis, Carum carvi, Cassia bauhinioides, Castela emoryi,
Castilleja applegatei, arachnoidea, chromosa, exserta, flava, flava var. rustica, integra, lemmonii, linariifolia,
miniata, minor var. minor, occidentalis, puberula, rhexiifolia, septentrionalis, sessiliflora, Catalpa speciosa,
Ceanothus fendleri, herbaceus, thyrsiflorus, velutinus, Centaurea cyanus, diffusa, melitensis, stoebe,
Cerastium arvense ssp. strictum, beeringianum, fontanum,
Ceratocephala testiculata, Cercis canadensis, Cercocarpus montanus, Cevallia sinuata,
Chaenactis douglasii, fremontii, stevioides, Chaetopappa bellidifolia, ericoides, Chamaebatiaria millefolium,
Chamaesaracha coniodes, sordida, villosa, Chamaenerion angustifolium, Chasmanthe floribunda, floribunda var. duckittii,
Chamaerhodos erecta, Chenopodium album, fremontii, leptophyllum, simplex, Chilopsis linearis, Chimaphila umbellata,
Chionanthus virginicus, Chionophila jamesii, Chorispora tenella,
Chylismia brevipes, claviformis var. claviformis, claviformis var. peirsonii,
Cichorium intybus, Cicuta douglasii, maculata, Circaea alpina,
Cirsium andersonii, arvense, canescens, clavatum, cymosum var. canovirens, eatonii, eatonii var. peckii, neomexicanum,
ochrocentrum, parryi, scariosum, scopulorum, undulatum, vulgare,
Clarkia pulchella, rhomboidea, Claydonia chlorophaea, Claytonia lanceolata, megarhiza, rosea, rubra, virginica, sibirica,
Clematis columbiana, drummondii, hirsutissima, ligusticifolia, virginia, Clintonia uniflora, Coeloglossum viride,
Collomia grandiflora, linearis, tinctoria, Collinsia parviflora, Comandra umbellata, Comastoma tenellum,
Conioselinum scopulorum, Conium maculatum, Conringia orientalis,
Convolvulus arvensis, Conyza canadensis, Corallorhiza maculata, striata, trifida, wisteriana, Coreopsis tinctoria,
Cornus alba var. alba, canadensis, florida, Corydalis aurea, caseana, caseana var. brandegeei,
Cosmos parviflorus, Cotoneaster lucidus, Crataegus douglasii, succulenta, Crepis acuminata, occidentalis ssp. costata, Croton dioicus,
Cryptantha angustifolia, crassisepala, minima, muricata, pterocarya, Cucurbita foetidissima,
Cylindropuntia fulgida, imbricata, spinosior, whipplei, Cymopterus glomeratus, lemmonii,
nivalis, purpureus, Cynoglossum officinale, Cypripedium fasciculatum, montanum, parviflorum, Cyrtorhyncha ranunculina
Caltha leptosepala, Calycanthus floridus, Calycoseris wrightii,
Calypso bulbosa, Calyptridium umbellatum, Calystegia occidentalis, Camassia quamash, Camelina microcarpa,
Campanula glomerata, parryi, prenanthoides, rapunculoides, rotundifolia, uniflora, Capsella bursa-pastoris,
Caragana arborescens, Cardamine breweri, concatenata, cordifolia,
Carduus nutans, Carex aurea, ebenea, heteroneura, nebrascensis, Carnegiea gigantea,
Carpobrotus chilensis, Carum carvi, Cassia bauhinioides, Castela emoryi,
Castilleja applegatei, arachnoidea, chromosa, exserta, flava, flava var. rustica, integra, lemmonii, linariifolia,
miniata, minor var. minor, occidentalis, puberula, rhexiifolia, septentrionalis, sessiliflora, Catalpa speciosa,
Ceanothus fendleri, herbaceus, thyrsiflorus, velutinus, Centaurea cyanus, diffusa, melitensis, stoebe,
Cerastium arvense ssp. strictum, beeringianum, fontanum,
Ceratocephala testiculata, Cercis canadensis, Cercocarpus montanus, Cevallia sinuata,
Chaenactis douglasii, fremontii, stevioides, Chaetopappa bellidifolia, ericoides, Chamaebatiaria millefolium,
Chamaesaracha coniodes, sordida, villosa, Chamaenerion angustifolium, Chasmanthe floribunda, floribunda var. duckittii,
Chamaerhodos erecta, Chenopodium album, fremontii, leptophyllum, simplex, Chilopsis linearis, Chimaphila umbellata,
Chionanthus virginicus, Chionophila jamesii, Chorispora tenella,
Chylismia brevipes, claviformis var. claviformis, claviformis var. peirsonii,
Cichorium intybus, Cicuta douglasii, maculata, Circaea alpina,
Cirsium andersonii, arvense, canescens, clavatum, cymosum var. canovirens, eatonii, eatonii var. peckii, neomexicanum,
ochrocentrum, parryi, scariosum, scopulorum, undulatum, vulgare,
Clarkia pulchella, rhomboidea, Claydonia chlorophaea, Claytonia lanceolata, megarhiza, rosea, rubra, virginica, sibirica,
Clematis columbiana, drummondii, hirsutissima, ligusticifolia, virginia, Clintonia uniflora, Coeloglossum viride,
Collomia grandiflora, linearis, tinctoria, Collinsia parviflora, Comandra umbellata, Comastoma tenellum,
Conioselinum scopulorum, Conium maculatum, Conringia orientalis,
Convolvulus arvensis, Conyza canadensis, Corallorhiza maculata, striata, trifida, wisteriana, Coreopsis tinctoria,
Cornus alba var. alba, canadensis, florida, Corydalis aurea, caseana, caseana var. brandegeei,
Cosmos parviflorus, Cotoneaster lucidus, Crataegus douglasii, succulenta, Crepis acuminata, occidentalis ssp. costata, Croton dioicus,
Cryptantha angustifolia, crassisepala, minima, muricata, pterocarya, Cucurbita foetidissima,
Cylindropuntia fulgida, imbricata, spinosior, whipplei, Cymopterus glomeratus, lemmonii,
nivalis, purpureus, Cynoglossum officinale, Cypripedium fasciculatum, montanum, parviflorum, Cyrtorhyncha ranunculina
D Dactylis glomerata, Dalea candida, formosa, frutescens, mollis, pogonathera, purpurea, wrightii,
Darlingtonia californica, Dasiphora fruticosa ssp. floribunda, Dasylirion leiophyllum, Datura wrightii,
Delphinium alpestre, barbeyi, bicolor, carolinianum ssp. virescens, geyeri, glaucum, nuttallianum, scopulorum, wootonii,
Descurainia incana, incisa, incisa var. paysonii, pinnata, pinnata ssp. brachycarpa, pinnata var. ochroleuca, sophia,
Dianthus armeria, Dichanthelium acuminatum, oligosanthes,
Dicentra formosa, Dichelostemma capitatum, ida-maia, Dieteria asteroides, bigelovii var. bigelovii, canescens,
Dimeresia howellii, Dimorphocarpa wislizeni, Diphasiastrum digitatum,
Dipsacus fullonum, Dithyrea alifornica, Dodecatheon jeffreyi, pulchellum, Downingia bacigalupii,
Draba aurea, cana, crassifolia, nemorosa, reptans, spectabilis, streptocarpa, Dryas octopetala, Drymocallis fissa, glandulosa,
Dryopetalon runcinatum, Dryopteris filix-mas, Dudleya cymosa, Dyssodia papposa
Darlingtonia californica, Dasiphora fruticosa ssp. floribunda, Dasylirion leiophyllum, Datura wrightii,
Delphinium alpestre, barbeyi, bicolor, carolinianum ssp. virescens, geyeri, glaucum, nuttallianum, scopulorum, wootonii,
Descurainia incana, incisa, incisa var. paysonii, pinnata, pinnata ssp. brachycarpa, pinnata var. ochroleuca, sophia,
Dianthus armeria, Dichanthelium acuminatum, oligosanthes,
Dicentra formosa, Dichelostemma capitatum, ida-maia, Dieteria asteroides, bigelovii var. bigelovii, canescens,
Dimeresia howellii, Dimorphocarpa wislizeni, Diphasiastrum digitatum,
Dipsacus fullonum, Dithyrea alifornica, Dodecatheon jeffreyi, pulchellum, Downingia bacigalupii,
Draba aurea, cana, crassifolia, nemorosa, reptans, spectabilis, streptocarpa, Dryas octopetala, Drymocallis fissa, glandulosa,
Dryopetalon runcinatum, Dryopteris filix-mas, Dudleya cymosa, Dyssodia papposa
E Echinacea angustifolia, Echinocactus polycephalus, Echinocereus coccineus, enneacanthus, fendleri subsp. boyce-thompsonii,
stramineus var. stramineus, triglochidiatus, viridiflorus, viridiflorus var. chloranthus, viridiflorus var. correllii,
viridflorus var. cylindricus, viridiflorus var. russanthus, Echinocystis lobata, Elaeagnus angustifolia,
Eleocharis acicularis, Elymus canadensis, Encelia actoni, farinosa, resinifera, Encelia frutescens, Ephedra viridis,
Epilobium anagallidifolium, brachycarpum, ciliatum, clavatum, fasciculatum, glaberrimum, halleanum, hirsutum,
hornemanii, lactiflorum, Epipactis gigantea, Equisetum arvense, laevigatum, Eremalche rotundifolia,
Eremogone aculeata, congesta, fendleri, hookeri, Eremothera boothii, refracta,
Eriastrum diffusum, Ericameria nauseosa, parryi var. parryi, Ericameria linearifolia, Erigeron bellidiastrum, caespitosus,
canus, compositus, concinnus, coulteri, divergens, eatonii, elatior, eximius, engelmannii, flagellaris, formosissimus, glabellus, glacialis,
grandiflorus, melanocephalus, modestus, nematophyllus, philadelphicus, pinnatisectus, pulchellus, pumilus, rybius,
speciosus, strigosus, subtrinervis, tracyi, vetensis,
Erigeron aphanactis, compositus var. discoideus, Eriogonum abertianum, alatum, bicolor,
brevicaule, caespitosum, douglasii, effusum, elatum, fasciculatum, flavum, heracleoides, inflatum, jamesii, latens,
lonchophyllum, nudum, ovalifolium var. purpureum, rotundifolium, strictum, umbellatum, wrightii,
Eriophorum gracile, Eriophyllum lanosum, Eriophyllum lanatum,
Eritrichium nanum, Erodium cicutarium, texanum, Erysimum asperum, capitatum, repandum, Erythronium americium,
grandiflorum, Eucephalus engelmannii, Eucephalus breweri, Euphorbia albomarginata, brachycera, dentata, esula,
eriantha, fendleri, marginata, myrsinites, spathulata, Eustoma elaltatum, Evolvulus nuttallianus
stramineus var. stramineus, triglochidiatus, viridiflorus, viridiflorus var. chloranthus, viridiflorus var. correllii,
viridflorus var. cylindricus, viridiflorus var. russanthus, Echinocystis lobata, Elaeagnus angustifolia,
Eleocharis acicularis, Elymus canadensis, Encelia actoni, farinosa, resinifera, Encelia frutescens, Ephedra viridis,
Epilobium anagallidifolium, brachycarpum, ciliatum, clavatum, fasciculatum, glaberrimum, halleanum, hirsutum,
hornemanii, lactiflorum, Epipactis gigantea, Equisetum arvense, laevigatum, Eremalche rotundifolia,
Eremogone aculeata, congesta, fendleri, hookeri, Eremothera boothii, refracta,
Eriastrum diffusum, Ericameria nauseosa, parryi var. parryi, Ericameria linearifolia, Erigeron bellidiastrum, caespitosus,
canus, compositus, concinnus, coulteri, divergens, eatonii, elatior, eximius, engelmannii, flagellaris, formosissimus, glabellus, glacialis,
grandiflorus, melanocephalus, modestus, nematophyllus, philadelphicus, pinnatisectus, pulchellus, pumilus, rybius,
speciosus, strigosus, subtrinervis, tracyi, vetensis,
Erigeron aphanactis, compositus var. discoideus, Eriogonum abertianum, alatum, bicolor,
brevicaule, caespitosum, douglasii, effusum, elatum, fasciculatum, flavum, heracleoides, inflatum, jamesii, latens,
lonchophyllum, nudum, ovalifolium var. purpureum, rotundifolium, strictum, umbellatum, wrightii,
Eriophorum gracile, Eriophyllum lanosum, Eriophyllum lanatum,
Eritrichium nanum, Erodium cicutarium, texanum, Erysimum asperum, capitatum, repandum, Erythronium americium,
grandiflorum, Eucephalus engelmannii, Eucephalus breweri, Euphorbia albomarginata, brachycera, dentata, esula,
eriantha, fendleri, marginata, myrsinites, spathulata, Eustoma elaltatum, Evolvulus nuttallianus
F Fagonia laevis, Fallugia paradoxa, Fendlera rupicola, Ferocactus cylindraceus, glauescens, wislizenii, Festuca idahoensis,
Forestiera pubescens, Forsythia x intermedia, Fouquieria splendens, Fragaria vesca, vesca var. bracteata, virginiana,
Frasera speciosa, Fraxinus anomala, pennsylvanica, Fritillaria pudica, Froelichia gracilis, Fumaria vaillantii,
Funastrum cynanchoides var. heterophyllum
Forestiera pubescens, Forsythia x intermedia, Fouquieria splendens, Fragaria vesca, vesca var. bracteata, virginiana,
Frasera speciosa, Fraxinus anomala, pennsylvanica, Fritillaria pudica, Froelichia gracilis, Fumaria vaillantii,
Funastrum cynanchoides var. heterophyllum
G Gaillardia aristata, multiceps, pinnatifida, pulchella, Galearis spectabilis, Galinsoga parvifolia,
Galium aparine, boreale, multiflorum, Gaultheria shallon, Gayophytum diffusum,
Gentiana affinis, algida, bigelovii, fremontii, parryi, Gentianella amarella ssp. acuta,
Gentianopsis barbellata, thermalis, Geraea canescens,
Geranium caespitosum, maculatum, molle, richardsonii, viscosissimum var. incisum,
Geum aleppicum, macrophyllum, rivale, rossii, triflorum, Gilia latiflora, ophthalmoides, scopulorum, sinuata, stewartii,
Giliastrum insigne, Glandularia bipinnatifida, gooddingii, quadrangulata, wrightii, Glandulicactus uncinatus,
Glycyrrhiza lepidota, Gnaphalium palustre, Goodyera oblongifolia, Grayia spinosa,
Grindelia scabra, squarrosa, subalpina, Grusonia bradtiana, Guaiacum angustifolium, Gutierrezia microcephala, sarothrae
Galium aparine, boreale, multiflorum, Gaultheria shallon, Gayophytum diffusum,
Gentiana affinis, algida, bigelovii, fremontii, parryi, Gentianella amarella ssp. acuta,
Gentianopsis barbellata, thermalis, Geraea canescens,
Geranium caespitosum, maculatum, molle, richardsonii, viscosissimum var. incisum,
Geum aleppicum, macrophyllum, rivale, rossii, triflorum, Gilia latiflora, ophthalmoides, scopulorum, sinuata, stewartii,
Giliastrum insigne, Glandularia bipinnatifida, gooddingii, quadrangulata, wrightii, Glandulicactus uncinatus,
Glycyrrhiza lepidota, Gnaphalium palustre, Goodyera oblongifolia, Grayia spinosa,
Grindelia scabra, squarrosa, subalpina, Grusonia bradtiana, Guaiacum angustifolium, Gutierrezia microcephala, sarothrae
H Hackelia cusickii, floribunda, micrantha, Halesia carolina, Harbouria trachypleura, Hechtia texensis, Hedeoma drummondii,
Hedysarum alpinum, boreale, Helianthella parryi, quinquenervis, uniflora, Helianthus annuus, grosseserratus, maximiliani,
nuttallii, pauciflorus, petiolaris, pumilus, Heliomeris longifolia, multiflora, Heliopsis parvifolia,
Heliotropium confertifolium, curassavicum, Heracleum maximum,
Hesperaloe parviflora, Hesperidanthus linearifolius, Hesperis matronalis, Hesperocallis undulata,
Hesperostipa comata, Heterotheca fulcrata, pumila, villosa, villosa var. nana, Heuchera bracteata, parvifolia, parvifolia,
nivalis, Hibiscus trionum, Hieracium albiflorum, aurantiacum, triste, venosum, Hoffmannseggia glauca,
Holodiscus dumosus, Hordeum jubatum, Horkelia fusca, Houstonia caerulea, pusilla,
Humulus lupulus, Hybanthus verticillatus, Hydrophyllum capitatum, fendleri, Hymenopappus biennis,
Hymenopappus filifolius, flavescens, tenuifolius, Hymenoxys grandiflora, hoopesii, odorata, richardsonii var. floribunda,
Hyoscyamus niger, Hypericum anagalloides, perforatum, Hypoxis hirsuta, Hyptis emoryi
Hedysarum alpinum, boreale, Helianthella parryi, quinquenervis, uniflora, Helianthus annuus, grosseserratus, maximiliani,
nuttallii, pauciflorus, petiolaris, pumilus, Heliomeris longifolia, multiflora, Heliopsis parvifolia,
Heliotropium confertifolium, curassavicum, Heracleum maximum,
Hesperaloe parviflora, Hesperidanthus linearifolius, Hesperis matronalis, Hesperocallis undulata,
Hesperostipa comata, Heterotheca fulcrata, pumila, villosa, villosa var. nana, Heuchera bracteata, parvifolia, parvifolia,
nivalis, Hibiscus trionum, Hieracium albiflorum, aurantiacum, triste, venosum, Hoffmannseggia glauca,
Holodiscus dumosus, Hordeum jubatum, Horkelia fusca, Houstonia caerulea, pusilla,
Humulus lupulus, Hybanthus verticillatus, Hydrophyllum capitatum, fendleri, Hymenopappus biennis,
Hymenopappus filifolius, flavescens, tenuifolius, Hymenoxys grandiflora, hoopesii, odorata, richardsonii var. floribunda,
Hyoscyamus niger, Hypericum anagalloides, perforatum, Hypoxis hirsuta, Hyptis emoryi
I Iliamna rivularis, Ipomoea leptophylla, purpurea, Ipomopsis aggregata, ssp. aggregata, ssp. candida, ssp. formosissima,
congesta, laxiflora, longiflora, pumila, roseata, spicata, tenuituba, Iris cristata, missouriensis, pseudacorus, versicolor,
Ivesia gordonii, lycopodioides
congesta, laxiflora, longiflora, pumila, roseata, spicata, tenuituba, Iris cristata, missouriensis, pseudacorus, versicolor,
Ivesia gordonii, lycopodioides
J Jamesia americana, Janusia gracilis, Jatropha dioica, Jeffersonia diphylla, Johnstonella angustifolia, Juncus torreyi,
Juniperus communis, deppeana, scopulorum, Justicia californica
Juniperus communis, deppeana, scopulorum, Justicia californica
K Kallstroemia hirsutissima, Kalmia angustifolia, microphylla, Knautia arvensis, Krameria erecta, Krascheninnikovia ceratoides
L Lactuca canadensis, ludoviciana, serriola, tatarica, Lagophylla ramosissima, Lamium amplexicaule, purpureum,
Langloisia setosissima, Lappula redowskii, Larrea tridentata, Lasthenia gracilis,
Lathyrus eucosmus, latifolius, lanszwertii var. laetivirens, lanszwertii var. leucanthus, ochroleucus,
polymorphous var. incanus, Lemna minor,
Leonurus cardiaca, Lepidium campestre, chalepense, draba, fremontii, latifolium, montanum, perfoliatum, virginicum,
Leptosiphon nuttallii ssp. nuttallii, Leucanthemum vulgare, Leucocrinum montanum, Leucophyllum candidum, Lewisia pygmaea,
Liatris punctata, Ligularia taraxacoides, Ligusticum filicinum, grayi, porteri, tenuifolium,
Lilium paradalinum, parvum, philadelphicum, washingtonianum, Linanthus caespitosus, pungens,
Linaria arenaria, dalmatica, vulgaris, Linnaea borealis, Linum berlandieri, lewisii, perenne, puberulum, rigidum,
Listera convallarioides, cordata, Lithophragma glabrum, parviflorum var. parviflorum,
Lithospermum incisum, multiflorum, occidentale, ruderale, Lloydia serotina,
Lolium perenne, Lomatium dissectum, grayi var. grayi, orientale, Lonicera albiflora, ciliosa, involucrata, morrowii, tatarica, utahensis,
Lotus corniculatus, rigidus, strigosus supsp. tomentellus, tenuis, unifoliolatus,
Lupinus albicaulis, angustifolius, arbustus, argenteus, argenteus ssp. ingratus, ssp. rubricaulis, breweri, caudatus, croceus, havardii,
latifolius, lepidus, lepidus var. lobbii, leucophyllus, malacophyllus, obtusilobus, prunophilus, pusillus, sparsiflorus, subvexus,
Lycium andersonii, torreyi, Lycopus americanus, Lygodesmia grandiflora, juncea, Lysimachia arvensis, latifolia, Lysichiton americanus
Langloisia setosissima, Lappula redowskii, Larrea tridentata, Lasthenia gracilis,
Lathyrus eucosmus, latifolius, lanszwertii var. laetivirens, lanszwertii var. leucanthus, ochroleucus,
polymorphous var. incanus, Lemna minor,
Leonurus cardiaca, Lepidium campestre, chalepense, draba, fremontii, latifolium, montanum, perfoliatum, virginicum,
Leptosiphon nuttallii ssp. nuttallii, Leucanthemum vulgare, Leucocrinum montanum, Leucophyllum candidum, Lewisia pygmaea,
Liatris punctata, Ligularia taraxacoides, Ligusticum filicinum, grayi, porteri, tenuifolium,
Lilium paradalinum, parvum, philadelphicum, washingtonianum, Linanthus caespitosus, pungens,
Linaria arenaria, dalmatica, vulgaris, Linnaea borealis, Linum berlandieri, lewisii, perenne, puberulum, rigidum,
Listera convallarioides, cordata, Lithophragma glabrum, parviflorum var. parviflorum,
Lithospermum incisum, multiflorum, occidentale, ruderale, Lloydia serotina,
Lolium perenne, Lomatium dissectum, grayi var. grayi, orientale, Lonicera albiflora, ciliosa, involucrata, morrowii, tatarica, utahensis,
Lotus corniculatus, rigidus, strigosus supsp. tomentellus, tenuis, unifoliolatus,
Lupinus albicaulis, angustifolius, arbustus, argenteus, argenteus ssp. ingratus, ssp. rubricaulis, breweri, caudatus, croceus, havardii,
latifolius, lepidus, lepidus var. lobbii, leucophyllus, malacophyllus, obtusilobus, prunophilus, pusillus, sparsiflorus, subvexus,
Lycium andersonii, torreyi, Lycopus americanus, Lygodesmia grandiflora, juncea, Lysimachia arvensis, latifolia, Lysichiton americanus
M Machaeranthera parviflora, tanacetifolia, Madia glomerata, gracilis, Mahonia fremontii, repens, trifoliolata,
Maianthemum racemosum ssp. amplexicaule, stellatum, Malacothrix fendleri, glabrata,
Malva neglecta, Malus pumila, Mammillaria grahamii, meiacantha, Marah oreganus, Marina parryi,
Marrubium vulgare, Marsilea vestita, Matricaria discoidea, Maurandya antirrhiniflora, Medicago lupulina, sativa,
Melampodium leucanthum, Melilotus albus, officinalis, Menodora spinescens var. spinescens, Mentha arvensis, piperita,
Mentzelia albicaulis, decapetala, involucrata, laevicaulis, lewisii, multiflora, oligosperma, nuda, strictissima,
Menziesia ferruginea, Mertensia alpina, brevistyla, ciliata, humilis, lanceloata, lanceolata var. nivalis, oblongifolia,
Micranthes micranthidifolia, odontoloma, oregana, rhomboidea, Microseris nutans, Microsteris gracilis, Mimosa borealis,
Mimulus bigelovii, cardinalis, cusickii, floribundus, glabratus, guttatus, moschata, nanus, jepsonii, lewisii, primuloides, tilingii,
Minuartia obtusiloba, Mirabilis albida, comata, hirsuta, laevis subsp. villosa, linearis, multiflora, nyctaginea, oxybaphoides,
Mitella diphylla, pentandra, stauropetala, Mnium arizonicum, Mohavea confertiflora, Mollugo verticilliata,
Monarda fistulosa, pectinata, Monardella odoratissima,
Moneses uniflora, Monoptilon bellidiforme, bellioides, Monotropa hypopitys, Montia chamissoi, Mortonia sempervirens,
Muhlenbergia racemosa, Muscari neglectum, Musineon divaricatum, tenuifolium, Myosotis alpestris, arvensis, asiatica, scorpioides
Maianthemum racemosum ssp. amplexicaule, stellatum, Malacothrix fendleri, glabrata,
Malva neglecta, Malus pumila, Mammillaria grahamii, meiacantha, Marah oreganus, Marina parryi,
Marrubium vulgare, Marsilea vestita, Matricaria discoidea, Maurandya antirrhiniflora, Medicago lupulina, sativa,
Melampodium leucanthum, Melilotus albus, officinalis, Menodora spinescens var. spinescens, Mentha arvensis, piperita,
Mentzelia albicaulis, decapetala, involucrata, laevicaulis, lewisii, multiflora, oligosperma, nuda, strictissima,
Menziesia ferruginea, Mertensia alpina, brevistyla, ciliata, humilis, lanceloata, lanceolata var. nivalis, oblongifolia,
Micranthes micranthidifolia, odontoloma, oregana, rhomboidea, Microseris nutans, Microsteris gracilis, Mimosa borealis,
Mimulus bigelovii, cardinalis, cusickii, floribundus, glabratus, guttatus, moschata, nanus, jepsonii, lewisii, primuloides, tilingii,
Minuartia obtusiloba, Mirabilis albida, comata, hirsuta, laevis subsp. villosa, linearis, multiflora, nyctaginea, oxybaphoides,
Mitella diphylla, pentandra, stauropetala, Mnium arizonicum, Mohavea confertiflora, Mollugo verticilliata,
Monarda fistulosa, pectinata, Monardella odoratissima,
Moneses uniflora, Monoptilon bellidiforme, bellioides, Monotropa hypopitys, Montia chamissoi, Mortonia sempervirens,
Muhlenbergia racemosa, Muscari neglectum, Musineon divaricatum, tenuifolium, Myosotis alpestris, arvensis, asiatica, scorpioides
N Nama demissum, havardii, hispidum, torynophyllum, Narcissus pseudonarcissus, Nasturtium officinale,
Navarretia breweri, Nemastylis geminiflora, Nemophila menziesii,
Neolloydia conoidea, Nepeta cataria, Nerisyrenia camporum, linearifolia, Nicolletia edwardsii,
Nicotiana attenuata, glauca, obtusifolia, Noccaea fendleri, fendleri ssp. glauca, Nolina texana, Nothocalais cuspidata,
Nothoscordum bivalve, Nuphar polysepala, Nuttallanthus texanus
Navarretia breweri, Nemastylis geminiflora, Nemophila menziesii,
Neolloydia conoidea, Nepeta cataria, Nerisyrenia camporum, linearifolia, Nicolletia edwardsii,
Nicotiana attenuata, glauca, obtusifolia, Noccaea fendleri, fendleri ssp. glauca, Nolina texana, Nothocalais cuspidata,
Nothoscordum bivalve, Nuphar polysepala, Nuttallanthus texanus
O Oenothera albicaulis, biennis, brachycarpa, caespitosa, caespitosa var. marginata, coronopifolia, curtiflora, deltoides,
hartwegii, howardii, laciniata, lavandulifolia, nutallii, pallida, primiveris, serrulata, suffrutescens, villosa, Olsynium douglasii,
Opuntia acanthocarpa, aggeria, azurea var. parva, basilaris, bigelovii, densispina, dulcis, englemannii var. engelmannii,
leptocaulis, macrorhiza, polyacantha, spinosibacca, rufida, Orchis spectabilis,
Oreocarya cana, flava, fulvocanescens var. nitida, humilis, suffruticosa, suffruticosa var. cinerea, tenuis, thyrsiflora, virgata,
Oreoxis alpina, Orobanche cooperi subsp. latiloba, fasciculata, uniflora, Orogenia linearifolia, Orthilia secunda,
Orthocarpus cuspidatus var. cryptanthus, luteus, Osmorhiza berteroi, depauperata, longistylis, occidentalis,
Oxalis alpina, corniculata, dillenii, oregana, violaceae, Oxypolis fendleri,
Oxyria digyna, Oxytropis deflexa, lambertii, lambertii/sericea, multiceps, sericea, splendens
hartwegii, howardii, laciniata, lavandulifolia, nutallii, pallida, primiveris, serrulata, suffrutescens, villosa, Olsynium douglasii,
Opuntia acanthocarpa, aggeria, azurea var. parva, basilaris, bigelovii, densispina, dulcis, englemannii var. engelmannii,
leptocaulis, macrorhiza, polyacantha, spinosibacca, rufida, Orchis spectabilis,
Oreocarya cana, flava, fulvocanescens var. nitida, humilis, suffruticosa, suffruticosa var. cinerea, tenuis, thyrsiflora, virgata,
Oreoxis alpina, Orobanche cooperi subsp. latiloba, fasciculata, uniflora, Orogenia linearifolia, Orthilia secunda,
Orthocarpus cuspidatus var. cryptanthus, luteus, Osmorhiza berteroi, depauperata, longistylis, occidentalis,
Oxalis alpina, corniculata, dillenii, oregana, violaceae, Oxypolis fendleri,
Oxyria digyna, Oxytropis deflexa, lambertii, lambertii/sericea, multiceps, sericea, splendens
P Packera cana, dimorphophylla, fendleri, multilobata, neomexicana, obovata, plattensis, pseudaurea, tridenticulata, werneriifolia,
Panicum capillare, Papaver orientale, radicatum ssp. kluanense, Parkinsonia texana var. texana,
Parnassia fimbriata, kotzebuei, palustris var. palustris, Paronychia jamesii, pulvinata, sessiliflora, Parthenium incanum,
Parthenocissus quinquefolia, vitacea, Paulownia tomentosa, Pectis angustifolia, Pedicularis bracteosa, canadensis, contorta,
crenulata, groenlandica, parryi, procera, racemosa var. alba, scopulorum, Pediocactus simpsonii, Pediomelum esculentum,
Peltigera aphthosa, Penstemon albertinus, albidus, ambiguus, angustifolius, attenuatus,
barbatus, buckleyi, caespitosus, cyaneus, cyathophorous, davidsonii var. praeteritus, deustus,
eatonii, eriantherus, fendleri, fruticosus var. fruticosus, glaber, gracilis, hallii, havardii, humilis, laricifolius subsp. exilifolius, lyalii,
neotericus, newberryi, pachyphyllus var. mucronatus, palmeri, parryi, rostriflorus, rydbergii, saxosorum, secundiflorus,
speciosus, strictus, trifolius, unilateris, virens, virgatus var. asa-grayi, whippleanus, wilcoxii,
Perideridia bolanderi, parishii, Peritoma arborea, lutea, serrulata, Perityle emoryi, Perovskia atriplicifolia,
Persicaria amphibia, lapathifolia, Phacelia alba, bipinnatifida, calthifolia, campanularia, congesta, corrugata, crenulata,
distans, hastata, hastata ssp. compacta, heterophylla, humilis, integrifolia, linearis, sericea, Philonotis fontana,
Phlox andicola, austromontana, canescens, carolina, condensata, diffusa, divaricata, hoodii,
longifolia, multiflora, muscoides, nana, pulvinata, Stansburyi, triovulata, woodhousei,
Pholisma arenarium, Phoradendron juniperinum, Phragmites australis, Phyla cuneifolia,
Phyllodoce breweri, empetriformis, Physalis hederifolia, heterophylla, hispida, longifolia, virginiana, Physcia adscendens,
Physaria acutifollia, alpina, arenosa, bellii, fendleri, gracilis, ludoviciana, montana, newberryi, ovalifolia, purpurea, vitulifera,
Physocarpus monogynus, Picea engelmannii, pungens, Picradeniopsis oppositifolia,
Pinus contorta var. latifolia, edulis, flexilis, ponderosa var. scopulorum, Piperia dilatata var. dilatata, var. leucostachys, unalascensis,
Plagiobothrys scouleri var. hispidulus, Plantago major, ovata, patagonica, rhodosperma,
Platanthera aquilonis, brevifolia, dilatata, huronensis, obtusata, purpurascens, stricta,
Platyschkuhria integrifolia, Plectritis macrocera,
Poa interior, Podophyllum peltatum, Pohlia nutans, Polanisia dodecandra ssp. trachysperma, uniglandulosa,
Polemonium confertum, foliosissimum, occidentale, pulcherrimum, reptans, viscosum, Paulycaulonia polycarpa, Polygala alba,
Polygonum amphibia, aviculare, douglasii, Polypogon monspeliensis, Polytrichum juniperinum, Populus angustifolia, deltoides,
Portulaca oleracea, Potentilla anserina, canadensis, concinna, concinna var. bicrenata, effusa, fissa, flabelliformis,
glandulosa, glaucophylla var. glaucophylla, gracilis, hippiana, millefolia var. klamathensis, norvegica, pensylvanica, pulcherrima,
recta, rubricaulis, subjuga, tomentosa, Primula angustifolia, parryi, Proboscidea parviflora, Prosartes trachycarpa, Prunella vulgaris,
Prunus americana, armeniaca, padus, pensylvanica, pumilus var. besseyi, tomentosa, virginiana var. demissa, Pyrus calleryana,
Psathyrotes scaposa, Pseudognaphalium canescens, Pseudostellaria jamesiana, Pseudostuga menziesii var. glauca
Psilostrophe sparsiflora, tagetina, villosa, Psoralidium lanceolatum, tenuiflorum,
Ptelea trifoliata, Pterospora andromedea, Pulsatilla patens var. multifida, occidentalis
Purshia plicata, stansburiana, tridentata, Pyrola asarifolia, chlorantha, minor, Pyrrocoma crocea var. crocea, Pyrus calleryana
Panicum capillare, Papaver orientale, radicatum ssp. kluanense, Parkinsonia texana var. texana,
Parnassia fimbriata, kotzebuei, palustris var. palustris, Paronychia jamesii, pulvinata, sessiliflora, Parthenium incanum,
Parthenocissus quinquefolia, vitacea, Paulownia tomentosa, Pectis angustifolia, Pedicularis bracteosa, canadensis, contorta,
crenulata, groenlandica, parryi, procera, racemosa var. alba, scopulorum, Pediocactus simpsonii, Pediomelum esculentum,
Peltigera aphthosa, Penstemon albertinus, albidus, ambiguus, angustifolius, attenuatus,
barbatus, buckleyi, caespitosus, cyaneus, cyathophorous, davidsonii var. praeteritus, deustus,
eatonii, eriantherus, fendleri, fruticosus var. fruticosus, glaber, gracilis, hallii, havardii, humilis, laricifolius subsp. exilifolius, lyalii,
neotericus, newberryi, pachyphyllus var. mucronatus, palmeri, parryi, rostriflorus, rydbergii, saxosorum, secundiflorus,
speciosus, strictus, trifolius, unilateris, virens, virgatus var. asa-grayi, whippleanus, wilcoxii,
Perideridia bolanderi, parishii, Peritoma arborea, lutea, serrulata, Perityle emoryi, Perovskia atriplicifolia,
Persicaria amphibia, lapathifolia, Phacelia alba, bipinnatifida, calthifolia, campanularia, congesta, corrugata, crenulata,
distans, hastata, hastata ssp. compacta, heterophylla, humilis, integrifolia, linearis, sericea, Philonotis fontana,
Phlox andicola, austromontana, canescens, carolina, condensata, diffusa, divaricata, hoodii,
longifolia, multiflora, muscoides, nana, pulvinata, Stansburyi, triovulata, woodhousei,
Pholisma arenarium, Phoradendron juniperinum, Phragmites australis, Phyla cuneifolia,
Phyllodoce breweri, empetriformis, Physalis hederifolia, heterophylla, hispida, longifolia, virginiana, Physcia adscendens,
Physaria acutifollia, alpina, arenosa, bellii, fendleri, gracilis, ludoviciana, montana, newberryi, ovalifolia, purpurea, vitulifera,
Physocarpus monogynus, Picea engelmannii, pungens, Picradeniopsis oppositifolia,
Pinus contorta var. latifolia, edulis, flexilis, ponderosa var. scopulorum, Piperia dilatata var. dilatata, var. leucostachys, unalascensis,
Plagiobothrys scouleri var. hispidulus, Plantago major, ovata, patagonica, rhodosperma,
Platanthera aquilonis, brevifolia, dilatata, huronensis, obtusata, purpurascens, stricta,
Platyschkuhria integrifolia, Plectritis macrocera,
Poa interior, Podophyllum peltatum, Pohlia nutans, Polanisia dodecandra ssp. trachysperma, uniglandulosa,
Polemonium confertum, foliosissimum, occidentale, pulcherrimum, reptans, viscosum, Paulycaulonia polycarpa, Polygala alba,
Polygonum amphibia, aviculare, douglasii, Polypogon monspeliensis, Polytrichum juniperinum, Populus angustifolia, deltoides,
Portulaca oleracea, Potentilla anserina, canadensis, concinna, concinna var. bicrenata, effusa, fissa, flabelliformis,
glandulosa, glaucophylla var. glaucophylla, gracilis, hippiana, millefolia var. klamathensis, norvegica, pensylvanica, pulcherrima,
recta, rubricaulis, subjuga, tomentosa, Primula angustifolia, parryi, Proboscidea parviflora, Prosartes trachycarpa, Prunella vulgaris,
Prunus americana, armeniaca, padus, pensylvanica, pumilus var. besseyi, tomentosa, virginiana var. demissa, Pyrus calleryana,
Psathyrotes scaposa, Pseudognaphalium canescens, Pseudostellaria jamesiana, Pseudostuga menziesii var. glauca
Psilostrophe sparsiflora, tagetina, villosa, Psoralidium lanceolatum, tenuiflorum,
Ptelea trifoliata, Pterospora andromedea, Pulsatilla patens var. multifida, occidentalis
Purshia plicata, stansburiana, tridentata, Pyrola asarifolia, chlorantha, minor, Pyrrocoma crocea var. crocea, Pyrus calleryana
R Rafinesquia neomexicana, Ranunculus abortivus, acris, adoneus, alismifolius, aquatilis,cardiophyllus, cymbalaria,
flammula var. reptans, glaberrimus, glaberrimus var. ellipticus, hispidus, inamoenus, macounii, ranunculinus, repens,
Ratibida columnifera, Reseda lutea, Rhamnus cathartica, Rhaponticum repens, Rhodiola integrifolia, rhodantha,
Rhododendron columbianum, macrophyllum, maximum, occidentale, Rhus aromatica var. triolabata, glabra, microphylla, typhina,
Ribes aureum, cereum, inerme, lacustre, lobbii, montigenum,roezlii, viscosissimum, wolfii,
Robinia pseudoacacia, Rorippa sinuata, Rosa acicularis ssp. sayi, arkansana, woodsii,
Rubus argutus, deliciosus, idaeus var. strigosus, parviflorus, ursinus,
Rudbeckia laciniata var. ampla, hirta var. hirta, Rudbeckia montana, occidentalis,
Rumex acetosella, crispus, densiflorus, hymenosepalus, occidentalis, salicifolius, triangulivalvis, venosus
flammula var. reptans, glaberrimus, glaberrimus var. ellipticus, hispidus, inamoenus, macounii, ranunculinus, repens,
Ratibida columnifera, Reseda lutea, Rhamnus cathartica, Rhaponticum repens, Rhodiola integrifolia, rhodantha,
Rhododendron columbianum, macrophyllum, maximum, occidentale, Rhus aromatica var. triolabata, glabra, microphylla, typhina,
Ribes aureum, cereum, inerme, lacustre, lobbii, montigenum,roezlii, viscosissimum, wolfii,
Robinia pseudoacacia, Rorippa sinuata, Rosa acicularis ssp. sayi, arkansana, woodsii,
Rubus argutus, deliciosus, idaeus var. strigosus, parviflorus, ursinus,
Rudbeckia laciniata var. ampla, hirta var. hirta, Rudbeckia montana, occidentalis,
Rumex acetosella, crispus, densiflorus, hymenosepalus, occidentalis, salicifolius, triangulivalvis, venosus
S Sagittaria cuneata, Salixx fragilis, alba, arctica, bebbiana, exigua, glauca, nivalis, planifolia, scouleriana, x sepulcralis
Salsola tragus, Salvia dorii, reflexa, Sambucus canadensis, nigra, racemosa, Sanicula marilandica, Saponaria officinalis,
Sarcodes sanguinea, Saxifraga austromontana, chrysantha, rivularis, virginiensis, Schoenocrambe linearifolia,
Schoenoplectus acutus, tabernaemontani, Scirpus pallidus, Scorzonera laciniata, Scrophularia californica,
lanceolata, Scuttelaria angustifolia,antirrhinoides, brittonii, galericulata,
Securigera varia, Sedum debile, lanceolatum, obtusatum, Selenia dissecta,
Senecio amplectens var. holmii, atratus, aureus, crassulus, eremophilus, eremophilus var. kingii, flaccidus,
fremontii var. biltoides, fremontii var. fremontii, glabellus, integerrimus, serra var. admirabilis, serra var. serra, spartioides,
triangularis, wootonii, Senecio bieglovii var. hallii, pudicus, rapifolius, Schoenocrambe linearifolia, Senna Trans-Pecos,
Shepherdia canadensis, Sherardia arvensis, Sibbaldia procumbens, Sidalcea campestris, candida, neomexicana, oregana,
Silene acaulis, antirrhina, bernardina, csereii, drummondii, latifolia, menziesii, noctiflora, oregana, scouleri,
Sisymbrium altissimum, irio, linifolium, loeselii, Sisyrinchium montanum, pallidum, Sium suave, Smelowskia americana,
Smilax lasioneura, Solanum carolinense, dulcamara, elaeagnifolium, nigrum, physalifolium, rostratum, triflorum, xanti,
Solidago gigantea, missouriensis, mollis, multiradiata, nana, rigida var. humilis, simplex, speciosa var. pallida, velutina, wrightii,
Sonchus asper, arvensis ssp. uliginosus, Sophora nuttalliana, pectinata, Sorghastrum nutans,
Spergularia rubra, Sphaeralcea ambigua, angustifolia, coccinea, emoryi, grossulariifolia, hastulata,
incana, laxa, leptophylla, munroana, parvifolia, Sphenosciadium capitellatum,
Spiraea lucida, Douglas', splendens, Spiranthes romanzoffiana, Stachys coccinea, palustris var. pilosa,
Stanleya pinnata, Stellaria longifolia, longipes, media, pubera, Stenocereus thurberi, Stenotus amerioides, Stephanomeria tenuifolia,
Streptanthus arizonicus, cordatus var. cordatus, Streptopus amplexifolius, Suaeda nigra,
Swertia perennis, Symphoricarpos albus, occidentalis, rotundifolius,
Symphyotrichum ascendens, boreale, campestre, ericoides, falcatum, fendleri, foliaceum, laeve var. geyeri, lanceolatum,
novae-angliae, porteri, Syntrichia ruralis, Syringa vulgaris
Salsola tragus, Salvia dorii, reflexa, Sambucus canadensis, nigra, racemosa, Sanicula marilandica, Saponaria officinalis,
Sarcodes sanguinea, Saxifraga austromontana, chrysantha, rivularis, virginiensis, Schoenocrambe linearifolia,
Schoenoplectus acutus, tabernaemontani, Scirpus pallidus, Scorzonera laciniata, Scrophularia californica,
lanceolata, Scuttelaria angustifolia,antirrhinoides, brittonii, galericulata,
Securigera varia, Sedum debile, lanceolatum, obtusatum, Selenia dissecta,
Senecio amplectens var. holmii, atratus, aureus, crassulus, eremophilus, eremophilus var. kingii, flaccidus,
fremontii var. biltoides, fremontii var. fremontii, glabellus, integerrimus, serra var. admirabilis, serra var. serra, spartioides,
triangularis, wootonii, Senecio bieglovii var. hallii, pudicus, rapifolius, Schoenocrambe linearifolia, Senna Trans-Pecos,
Shepherdia canadensis, Sherardia arvensis, Sibbaldia procumbens, Sidalcea campestris, candida, neomexicana, oregana,
Silene acaulis, antirrhina, bernardina, csereii, drummondii, latifolia, menziesii, noctiflora, oregana, scouleri,
Sisymbrium altissimum, irio, linifolium, loeselii, Sisyrinchium montanum, pallidum, Sium suave, Smelowskia americana,
Smilax lasioneura, Solanum carolinense, dulcamara, elaeagnifolium, nigrum, physalifolium, rostratum, triflorum, xanti,
Solidago gigantea, missouriensis, mollis, multiradiata, nana, rigida var. humilis, simplex, speciosa var. pallida, velutina, wrightii,
Sonchus asper, arvensis ssp. uliginosus, Sophora nuttalliana, pectinata, Sorghastrum nutans,
Spergularia rubra, Sphaeralcea ambigua, angustifolia, coccinea, emoryi, grossulariifolia, hastulata,
incana, laxa, leptophylla, munroana, parvifolia, Sphenosciadium capitellatum,
Spiraea lucida, Douglas', splendens, Spiranthes romanzoffiana, Stachys coccinea, palustris var. pilosa,
Stanleya pinnata, Stellaria longifolia, longipes, media, pubera, Stenocereus thurberi, Stenotus amerioides, Stephanomeria tenuifolia,
Streptanthus arizonicus, cordatus var. cordatus, Streptopus amplexifolius, Suaeda nigra,
Swertia perennis, Symphoricarpos albus, occidentalis, rotundifolius,
Symphyotrichum ascendens, boreale, campestre, ericoides, falcatum, fendleri, foliaceum, laeve var. geyeri, lanceolatum,
novae-angliae, porteri, Syntrichia ruralis, Syringa vulgaris
T Tamarix chinensis, Tanacetum parthenium, Tanacetum vulgare, Taraxacum ceratophorum, officinale,
Taraxiat anacetifolia, Tecoma stans, Telesonix jamesii, Tellima grandiflora,
Tetraneuris acaulis var. acaulis, acaulis var. caespitosa, acaulis var. epunctata, acaulis var. arizonica, ivesiana, scaposa, torreyana,
Teucrium canadense var. occidentale, Thalictrum dasycarpum, fendleri, occidentale, sparsiflorum, Thelesperma filifolium,
Thelesperma megapotamicum, Thermopsis divaricarpa, montana, rhombifolia,
Thinopyrum ponticum, Thlaspi arvense, Thymophylla acerosa, pentachaeta,
Tiarella cordifolia, trifoliata var. unifoliata, Tidestromia lanuginosa, Tiquilia latior,
Tonestus pygmaeus, Townsendia grandiflora, hookeri, incana, Toxicodendron rydbergii, Toxicoscordion venenosum,
Tradescantia occidentalis, Tragopogon dubius, Tragia ramosa, Tribulus terrestris,
Trifolium dasyphyllum, hybridum, longipes var. multipedunculatum, monanthum, nanum, parryi, pratense,
Trillium catesbaei, flexipes, grandiflorum, luteum, ovatum, pusillum, simile, stamineum, sulcatum, Triodanis perfoliata,
Tripleurospermum maritimum ssp. inodorum, Triteleia grandiflora, Trixis californica,
Trollius albiflorus, Turritis glabra, Typha angustifolia, latifolia
Taraxiat anacetifolia, Tecoma stans, Telesonix jamesii, Tellima grandiflora,
Tetraneuris acaulis var. acaulis, acaulis var. caespitosa, acaulis var. epunctata, acaulis var. arizonica, ivesiana, scaposa, torreyana,
Teucrium canadense var. occidentale, Thalictrum dasycarpum, fendleri, occidentale, sparsiflorum, Thelesperma filifolium,
Thelesperma megapotamicum, Thermopsis divaricarpa, montana, rhombifolia,
Thinopyrum ponticum, Thlaspi arvense, Thymophylla acerosa, pentachaeta,
Tiarella cordifolia, trifoliata var. unifoliata, Tidestromia lanuginosa, Tiquilia latior,
Tonestus pygmaeus, Townsendia grandiflora, hookeri, incana, Toxicodendron rydbergii, Toxicoscordion venenosum,
Tradescantia occidentalis, Tragopogon dubius, Tragia ramosa, Tribulus terrestris,
Trifolium dasyphyllum, hybridum, longipes var. multipedunculatum, monanthum, nanum, parryi, pratense,
Trillium catesbaei, flexipes, grandiflorum, luteum, ovatum, pusillum, simile, stamineum, sulcatum, Triodanis perfoliata,
Tripleurospermum maritimum ssp. inodorum, Triteleia grandiflora, Trixis californica,
Trollius albiflorus, Turritis glabra, Typha angustifolia, latifolia
U Ulmus pumila, Uropappus lindleyi, Urtica dioica ssp. gracilis, Utricularia macrorhiza, Uvularia grandiflora, sessilifolia
V Vaccinium cespitosum, myrtillus, scoparium, Valeriana acutiloba, edulis, occidentalis, scouleri, sitchensis,
Veratrum californicum var. californicum, Verbascum blattaria, thapsus, Verbena bracteata, canadensis, halei, hastata,
macdougalii, Verbesina encelioides, Veronica americana, anagallis-aquatica, catenata, cusickii, peregrina subsp. xalapensis, persica,
polita, serpyllifolia ssp. humifula, wormskjoldii, Vesper bulbosus, montanus, Viburnum edule, lantana,
opulus var. americanum, Vicia americana, Viguiera stenoloba, Viola adunca, bicolor, blanda, canadensis, hastata, macloskeyi, nuttallii,
pedata, pedatifida, pubescens, purpurea ssp. venosa, rydbergii, sororia, rostrata, Vitis riparia
Veratrum californicum var. californicum, Verbascum blattaria, thapsus, Verbena bracteata, canadensis, halei, hastata,
macdougalii, Verbesina encelioides, Veronica americana, anagallis-aquatica, catenata, cusickii, peregrina subsp. xalapensis, persica,
polita, serpyllifolia ssp. humifula, wormskjoldii, Vesper bulbosus, montanus, Viburnum edule, lantana,
opulus var. americanum, Vicia americana, Viguiera stenoloba, Viola adunca, bicolor, blanda, canadensis, hastata, macloskeyi, nuttallii,
pedata, pedatifida, pubescens, purpurea ssp. venosa, rydbergii, sororia, rostrata, Vitis riparia
X Xanthisma gracile, spinulosum, Xanthium strumarium, Xanthroparmelia cuberlandia, Xerophyllum tenax, Xylorhiza tortifolia, venusta
Y Yucca baccata, brevifolia, elata, glauca, rostrata, schidigera, treculeana