Search by property
This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.
List of results
- Abronia nana +
- Abronia villosa +
- Acamptopappus +
- Acamptopappus sphaerocephalus +
- Acaulon muticum +
- Achlys +
- Achnatherum lemmonii +
- Achnatherum nelsonii +
- Achnatherum parishii +
- Achyranthes +
- Achyranthes aspera +
- Acmella +
- Aconitum columbianum +
- Aconogonon alaskanum +
- Aconogonon davisiae +
- Aconogonon phytolaccifolium +
- Acorus +
- Acrostichum +
- Actaea +
- Adenostoma +
- Adolphia +
- Aeonium +
- Agalinis maritima +
- Agalinis purpurea +
- Agave americana +
- Agave americana subsp. americana +
- Agave deserti +
- Agave parryi +
- Agave schottii +
- Agave toumeyana +
- Agave utahensis +
- Ageratina altissima +
- Agoseris aurantiaca +
- Agoseris glauca +
- Agoseris grandiflora +
- Agropyron +
- Aira +
- Alcea +
- Alchemilla filicaulis +
- Allionia +
- Allionia incarnata +
- Allium atrorubens +
- Allium bolanderi +
- Allium geyeri +
- Allium obtusum +
- Allium peninsulare +
- Allium perdulce +
- Allium sanbornii +
- Allium tolmiei +
- Allium tricoccum +
- Allowissadula +
- Alnus incana +
- Aloe +
- Alopecurus aequalis +
- Amelanchier canadensis +
- Ammophila +
- Ammophila breviligulata +
- Amphiachyris +
- Amphicarpum +
- Amphipappus fremontii +
- Amsonia +
- Amsonia subg. Articularia +
- Amsonia tomentosa +
- Anacolia +
- Ancistrocactus +
- Ancistrocarphus +
- Andromeda polifolia +
- Andropogon +
- Andropogon gyrans +
- Andropogon sect. Andropogon +
- Andropogon ternarius +
- Androstephium +
- Anemone drummondii +
- Anemone edwardsiana +
- Anemone oregana +
- Anemone quinquefolia +
- Anisocarpus +
- Annona +
- Anomobryum +
- Anomodontaceae +
- Anredera +
- Antennaria luzuloides +
- Antennaria monocephala +
- Antennaria parlinii +
- Antennaria pulcherrima +
- Anthemis +
- Anthenantia +
- Anthoxanthum monticola +
- Antitrichia +
- Apera +
- Aphanostephus ramosissimus +
- Arabis pycnocarpa +
- Arctagrostis latifolia +
- Arctanthemum arcticum +
- Arctostaphylos bakeri +
- Arctostaphylos canescens +
- Arctostaphylos hookeri +
- Arctostaphylos mewukka +
- Arctostaphylos montana +
- Arctostaphylos nevadensis +
- Arctostaphylos nummularia +
- Arctostaphylos pringlei +
- Arctotis +
- Arctous +
- Arecaceae (tribe Cocoeae) subtribe Butiinae +
- Arecaceae subfam. Ceroxyloideae +
- Arecaceae subfam. Coryphoideae +
- Arenaria lanuginosa +
- Arenaria serpyllifolia +
- Argemone albiflora +
- Argemone corymbosa +
- Argemone squarrosa +
- Argyrochosma limitanea +
- Argythamnia mercurialina +
- Arisaema +
- Aristida californica +
- Aristida dichotoma +
- Aristida longespica +
- Aristida ternipes +
- Arnica angustifolia +
- Arnica griscomii +
- Arnica lanceolata +
- Aronia +
- Artemisia borealis +
- Artemisia globularia +
- Artemisia laciniata +
- Artemisia tripartita +
- Asimina longifolia +
- Aspicarpa +
- Asplenium trichomanes +
- Aster +
- Asteraceae (tribe Heliantheae) subtribe Clappiinae +
- Asteraceae (tribe Heliantheae) subtribe Peritylinae +
- Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae +
- Astrolepis sinuata +
- Athyrium +
- Athysanus +
- Atriplex acanthocarpa +
- Atriplex cordulata +
- Atriplex elegans +
- Atriplex garrettii +
- Atriplex gmelinii +
- Atriplex powellii +
- Atriplex sect. Dialysex +
- Atriplex sect. Semibaccata +
- Atriplex sect. Spongiocarpus +
- Atriplex serenana +
- Atriplex torreyi +
- Atriplex wolfii +
- Aulacomniaceae +
- Aurinia +
- Austrostipa +
- Avenula +
- Baccharis pilularis +
- Baccharis plummerae +
- Balsamorhiza +
- Barbula indica +
- Bassia +
- Begonia +
- Berberis pinnata +
- Beta vulgaris +
- Betula nana +
- Betula pubescens +
- Betulaceae +
- Betulaceae subfam. Betuloideae +
- Bigelowia +
- Bigelowia nudata +
- Blechnaceae +
- Blennosperma +
- Blennosperma nanum +
- Blepharidachne +
- Blepharizonia +
- Bletia +
- Boechera breweri +
- Boechera fernaldiana +
- Boehmeria +
- Boerhavia coulteri +
- Bolandra +
- Bolboschoenus maritimus +
- Boltonia diffusa +
- Botrychium lanceolatum +
- Botrychium subg. Sceptridium +
- Bouteloua +
- Bouteloua aristidoides +
- Bouteloua barbata +
- Bouteloua curtipendula +
- Bouteloua hirsuta +
- Bouteloua trifida +
- Brachydontium +
- Brachyelytrum +
- Brachymenium +
- Brachytheciastrum velutinum +
- Brachythecium erythrorrhizon +
- Bradburia +
- Brassicaceae tribe Chorisporeae +
- Brassicaceae tribe Halimolobeae +
- Brassicaceae tribe Iberideae +
- Brassicaceae tribe Isatideae +
- Brassicaceae tribe Noccaeeae +
- Brassicaceae tribe Thlaspideae +
- Braunia +
- Braya thorild-wulffii +
- Brickellia coulteri +
- Brickellia hinckleyi +
- Brickellia lemmonii +
- Brickellia longifolia +
- Brickellia microphylla +
- Brickellia oblongifolia +
- Brodiaea californica +
- Brodiaea coronaria +
- Brodiaea elegans +
- Brodiaea terrestris +
- Bromus carinatus +
- Bromus catharticus +
- Bromus pumpellianus +
- Browallia +
- Bruchiaceae +
- Bryonia +
- Bucklandiella macounii +
- Bucklandiella sect. Marginatae +
- Buddleja racemosa +
- Bulbostylis ciliatifolia +
- Bunias +
- Buxaceae +
- Cabombaceae +
- Calamagrostis porteri +
- Calamagrostis stricta +
- Calamovilfa longifolia +
- Calandrinia +
- Calendula +
- Callirhoë involucrata +
- Calochortus gunnisonii +
- Calochortus kennedyi +
- Calochortus longebarbatus +
- Calochortus macrocarpus +
- Calochortus palmeri +
- Calophyllaceae +
- Calopogon tuberosus +
- Calycanthus +
- Calycanthus floridus +
- Calycoseris +
- Calymperaceae +
- Calypso bulbosa +
- Calyptranthes +
- Camassia leichtlinii +
- Camissonia campestris +
- Camissonia kernensis +
- Camissonia sierrae +
- Camissoniopsis cheiranthifolia +
- Camissoniopsis pallida +
- Campylopodiella +
- Campylopus atrovirens +
- Canbya +
- Cannabaceae +
- Caperonia +
- Capraria +
- Carex atlantica +
- Carex bigelowii +
- Carex bromoides +
- Carex brunnescens +
- Carex canescens +
- Carex communis +
- Carex crinita +
- Carex debilis +
- Carex deflexa +
- Carex deweyana +
- Carex echinata +
- Carex filifolia +
- Carex fissa +
- Carex glareosa +
- Carex inops +
- Carex laxiculmis +
- Carex lucorum +
- Carex luzulina +
- Carex microchaeta +
- Carex muehlenbergii +
- Carex petricosa +
- Carex scoparia +
- Carex sect. Albae +
- Carex sect. Ammoglochin +
- Carex sect. Anomalae +
- Carex sect. Circinatae +
- Carex sect. Dornera +
- Carex sect. Holarrhenae +
- Carex sect. Lamprochlaenae +
- Carex sect. Leucoglochin +
- Carex sect. Macrocephalae +
- Carex sect. Physoglochin +
- Carex sect. Pictae +
- Carex stipata +
- Carex tenera +
- Carex tonsa +
- Carex tribuloides +
- Carphephorus odoratissimus +
- Carpinus caroliniana +
- Carpobrotus +
- Carya ovata +
- Caryota +
- Cassiope tetragona +
- Castilleja campestris +
- Castilleja flava +
- Castilleja hispida +
- Castilleja martini +
- Castilleja pallescens +
- Castilleja pallida +
- Castilleja rubicundula +
- Castilleja scabrida +
- Cathestecum +
- Caulophyllum +
- Cayaponia +
- Ceanothus +
- Ceanothus crassifolius +
- Ceanothus impressus +
- Ceanothus jepsonii +
- Ceanothus megacarpus +
- Ceanothus prostratus +
- Ceanothus tomentosus +
- Ceanothus velutinus +
- Celastrus +
- Centromadia pungens +
- Cerastium alpinum +
- Cerastium arvense +
- Cerastium fontanum +
- Cerastium nutans +
- Cerastium velutinum +
- Ceratodon +
- Chaenactis carphoclinia +
- Chaenactis douglasii +
- Chaenactis sect. Acarphaea +
- Chaenomeles +
- Chaetopappa asteroides +
- Chamaebatia +
- Chamaemelum +
- Chamaenerion +
- Chamaenerion angustifolium +
- Chenopodium +
- Chenopodium capitatum +
- Chenopodium glaucum +
- Chenopodium polyspermum +
- Chenopodium rubrum +
- Chenopodium sect. Agathophytum +
- Chenopodium sect. Blitum +
- Chenopodium sect. Pseudoblitum +
- Chenopodium subg. Chenopodium +
- Chionophila +
- Chloris canterae +
- Chlorogalum purpureum +
- Chloropyron molle +
- Chorizanthe biloba +
- Chorizanthe brevicornu +
- Chorizanthe cuspidata +
- Chorizanthe fimbriata +
- Chorizanthe parryi +
- Chorizanthe polygonoides +
- Chorizanthe pungens +
- Chorizanthe robusta +
- Chorizanthe xanti +
- Chrysobalanaceae +
- Chrysolepis +
- Chrysolepis chrysophylla +
- Chrysopsis linearifolia +
- Chylismia +
- Chylismia cardiophylla +
- Chylismia sect. Lignothera +
- Chylismia specicola +
- Chylismia walkeri +
- Cienfuegosia +
- Circaea alpina +
- Cirsium cymosum +
- Cirsium douglasii +
- Cirsium hydrophilum +
- Cirsium inamoenum +
- Cirsium ochrocentrum +
- Cirsium pulcherrimum +
- Cirsium pumilum +
- Cissus +
- Clarkia borealis +
- Clarkia cylindrica +
- Clarkia mildrediae +
- Clarkia sect. Eucharidium +
- Clarkia subsect. Flexicaules +
- Clarkia tembloriensis +
- Clarkia xantiana +
- Claytonia exigua +
- Claytonia rubra +
- Cleistes +
- Clematis columbiana +
- Clematis hirsutissima +
- Clematis pitcheri +
- Clematis subg. Atragene +
- Cleome +
- Cleomella hillmanii +
- Cleoserrata +
- Climacium +
- Coccoloba +
- Cocculus +
- Codriophorus +
- Collinsia heterophylla +
- Collinsia sparsiflora +
- Comandraceae +
- Comarostaphylis diversifolia +
- Commelina diffusa +
- Condalia warnockii +
- Conoclinium betonicifolium +
- Conopholis +
- Convallaria majalis +
- Corallorhiza maculata +
- Corallorhiza odontorhiza +
- Corallorhiza striata +
- Cordylanthus eremicus +
- Cordylanthus pilosus +
- Coreopsis sect. Calliopsis +
- Coreopsis sect. Tuckermannia +
- Corispermum americanum +
- Corispermum hookeri +
- Corispermum ochotense +
- Cornus subg. Cornus +
- Cornus subg. Cynoxylon +
- Cortaderia +
- Corydalis aurea +
- Corydalis curvisiliqua +
- Corylus cornuta +
- Cotula +
- Crataegus (sect. Coccineae) ser. Bracteatae +
- Crataegus (sect. Coccineae) ser. Parvifoliae +
- Crataegus (sect. Coccineae) ser. Triflorae +
- Crataegus (sect. Coccineae) ser. Virides +
- Crataegus (sect. Crataegus) ser. Crataegus +
- Crataegus berberifolia +
- Crataegus crus-galli +
- Crataegus okanaganensis +
- Crataegus ouachitensis +
- Crataegus padifolia +
- Crataegus sect. Macracanthae +
- Crataegus sheila-phippsiae +
- Crataegus texana +
- Crataegus ×sicca +
- Crinum americanum +
- Crocanthemum scoparium +
- Crossidium squamiferum +
- Crossopetalum +
- Crossosoma +
- Croton alabamensis +
- Croton lindheimerianus +
- Croton michauxii +
- Croton pottsii +
- Ctenidium +
- Ctenitis +
- Ctenium +
- Cucumis anguria +
- Cucumis melo +
- Cucurbita melopepo +
- Cucurbita melopepo subsp. texana +
- Cusickiella +
- Cyclopogon +
- Cylindropuntia californica +
- Cylindropuntia fulgida +
- Cylindropuntia imbricata +
- Cymodoceaceae +
- Cynara cardunculus +
- Cynodon dactylon +
- Cynosurus +
- Cyperus lupulinus +
- Cyperus subg. Diclidium +
- Cyperus subg. Juncellus +
- Cyphomeris +
- Cyrillaceae +
- Cyrtomium +
- Cyrtomnium +
- Cyrtopodium +
- Dactylorhiza +
- Daphne +
- Deeringothamnus +
- Deinandra increscens +
- Delphinium +
- Delphinium bicolor +
- Delphinium californicum +
- Delphinium decorum +
- Delphinium gypsophilum +
- Delphinium menziesii +
- Delphinium nuttallii +
- Dendromecon +
- Deparia +
- Descurainia incisa +
- Desmazeria +
- Diapensia +
- Diaperia prolifera +
- Diaperia verna +
- Diarrhena +
- Dicentra formosa +
- Dichanthelium chamaelonche +
- Dichanthelium ensifolium +
- Dichanthelium oligosanthes +
- Dichanthelium portoricense +
- Dichanthelium sect. Angustifolia +
- Dichanthelium sect. Dichanthelium +
- Dichanthelium sect. Pedicellata +
- Dichanthelium sect. Strigosa +
- Dichelostemma capitatum +
- Dichodontium +
- Dicranoweisia +
- Dicranum fuscescens +
- Dicranum majus +
- Didymodon vinealis +
- Digitaria eriantha +
- Dimorphotheca +
- Diphyscium +
- Diplacus bigelovii +
- Dithyrea +
- Dodecatheon conjugens +
- Doellingeria umbellata +
- Donrichardsia +
- Draba asprella +
- Droseraceae +
- Dryas integrifolia +
- Drymocallis cuneifolia +
- Drymocallis lactea +
- Dryopetalon +
- Drypetes +
- Dudleya blochmaniae +
- Dulichium arundinaceum +
- Echinacea paradoxa +
- Echinocactus polycephalus +
- Echinocereus enneacanthus +
- Echinochloa crus-pavonis +
- Echinochloa muricata +
- Echinomastus erectocentrus +
- Echinomastus intertextus +
- Echinopepon +
- Eichhornia +
- Elatinaceae +
- Eleocharis compressa +
- Eleocharis flavescens +
- Eleocharis microcarpa +
- Eleocharis sect. Eleogenus +
- Eleocharis sect. Parvulae +
- Eleusine coracana +
- Elionurus +
- Elliottia +
- Elymus alaskanus +
- Elymus stebbinsii +
- Emex +
- Emilia +
- Encalyptaceae +
- Enneapogon +
- Ephemeraceae +
- Ephemerum crassinervium +
- Epilobium glaberrimum +
- Epilobium hornemannii +
- Epilobium sect. Crossostigma +
- Epilobium sect. Epilobiopsis +
- Epilobium sect. Zauschneria +
- Epilobium subsect. Petrolobium +
- Epithelantha +
- Equisetum +
- Equisetum variegatum +
- Eragrostis ciliaris +
- Eragrostis mexicana +
- Eragrostis pilosa +
- Erechtites hieraciifolius +
- Eremalche parryi +
- Eremochloa +
- Eremogone capillaris +
- Eremogone eastwoodiae +
- Eremogone franklinii +
- Eremogone hookeri +
- Eremogone kingii +
- Eremogone macradenia +
- Ericameria palmeri +
- Erigeron aphanactis +
- Erigeron bloomeri +
- Erigeron clokeyi +
- Erigeron formosissimus +
- Erigeron glabellus +
- Erigeron glacialis +
- Erigeron lassenianus +
- Erigeron peregrinus +
- Erigeron pumilus +
- Erigeron reductus +
- Erigeron sionis +
- Erigeron uncialis +
- Eriochloa acuminata +
- Eriochloa michauxii +
- Eriogonum alatum +
- Eriogonum apricum +
- Eriogonum baileyi +
- Eriogonum breedlovei +
- Eriogonum cithariforme +
- Eriogonum elatum +
- Eriogonum esmeraldense +
- Eriogonum gracile +
- Eriogonum heracleoides +
- Eriogonum hoffmannii +
- Eriogonum inerme +
- Eriogonum marifolium +
- Eriogonum multiflorum +
- Eriogonum nutans +
- Eriogonum ochrocephalum +
- Eriogonum panguicense +
- Eriogonum pharnaceoides +
- Eriogonum prattenianum +
- Eriogonum prociduum +
- Eriogonum pyrolifolium +
- Eriogonum rosense +
- Eriogonum subg. Eriogonum +
- Eriogonum subg. Micrantha +
- Eriogonum ursinum +
- Eriogonum zionis +
- Eriophorum angustifolium +
- Eriophyllum ambiguum +
- Eriophyllum confertiflorum +
- Erpodium +
- Erysimum capitatum +
- Erythronium americanum +
- Erythronium grandiflorum +
- Erythronium umbilicatum +
- Eschscholzia californica +
- Eschscholzia lemmonii +
- Eubotrys +
- Eucephalus ledophyllus +
- Eucnide bartonioides +
- Euonymus occidentalis +
- Eupatorium hyssopifolium +
- Eupatorium leucolepis +
- Euphorbia austrotexana +
- Euphorbia chaetocalyx +
- Euphorbia geyeri +
- Euphorbia inundata +
- Euphorbia ocellata +
- Euphorbia serpillifolia +
- Euphorbia theriaca +
- Euphrasia arctica +
- Euphrasia oakesii +
- Euphrasia stricta +
- Eurhynchiastrum pulchellum +
- Eutrema +
- Eutrochium purpureum +
- Fabronia +
- Fagopyrum +
- Fendlera +
- Ferocactus hamatacanthus +
- Festuca sect. Subulatae +
- Festuca subg. Festuca +
- Festuca viviparoidea +
- Filago +
- Fimbristylis puberula +
- Fleischmannia +
- Flourensia +
- Forsstroemia +
- Fothergilla +
- Fragaria chiloensis +
- Freesia +
- Fritillaria biflora +
- Fuirena simplex +
- Funaria hygrometrica +
- Furcraea +
- Galanthus +
- Galenia +
- Galinsoga +
- Galinsoga parviflora +
- Garryaceae +
- Gayophytum diffusum +
- Geraea +
- Geum macrophyllum +
- Geum triflorum +
- Gillenia +
- Glaucium +
- Glebionis +
- Glinus +
- Glyceria canadensis +
- Glyceria grandis +
- Glyceria septentrionalis +
- Glyptopleura +
- Gossypianthus lanuginosus +
- Graptopetalum +
- Grimmia subg. Undetermined +
- Groutiella +
- Guaiacum +
- Guapira +
- Gutierrezia texana +
- Guzmania monostachia +
- Habranthus +
- Hackelochloa +
- Haemodoraceae +
- Halesia +
- Hamamelis +
- Hamatocaulis +
- Haplodontium +
- Harrimanella +
- Hasteola +
- Hazardia whitneyi +
- Hechtia +
- Helenium amarum +
- Helenium elegans +
- Helenium microcephalum +
- Helianthus occidentalis +
- Helianthus pauciflorus +
- Helianthus petiolaris +
- Helictotrichon +
- Heliomeris longifolia +
- Heliopsis helianthoides +
- Helodiaceae +
- Hemerocallis +
- Hemiscola +
- Hennediella +
- Hennediella heimii +
- Hermannia +
- Herniaria +
- Herniaria hirsuta +
- Herrickia glauca +
- Herrickia kingii +
- Hesperaloe +
- Hesperevax sparsiflora +
- Hesperostipa comata +
- Hesperoyucca +
- Heteropogon +
- Heterotheca camporum +
- Heterotheca stenophylla +
- Heterotheca subaxillaris +
- Heuchera parviflora +
- Heuchera villosa +
- Hexalectris spicata +
- Hexastylis shuttleworthii +
- Hibiscus moscheutos +
- Hilaria belangeri +
- Holcus +
- Holocarpha virgata +
- Holodiscus +
- Holodiscus discolor +
- Homomallium mexicanum +
- Hookeria +
- Hordeum brachyantherum +
- Hordeum jubatum +
- Hordeum marinum +
- Horkelia congesta +
- Horkelia sect. Parryae +
- Horkelia tridentata +
- Horkeliella +
- Horsfordia +
- Humulus +
- Hyacinthoides +
- Hylocomiastrum +
- Hymenocallis henryae +
- Hymenocallis occidentalis +
- Hymenopappus artemisiifolius +
- Hymenopappus flavescens +
- Hymenopappus scabiosaeus +
- Hymenophyllaceae +
- Hymenostylium recurvirostrum +
- Hymenoxys richardsonii +
- Hyoscyamus +
- Hyparrhenia +
- Hypericaceae +
- Hypericum hypericoides +
- Hypericum mutilum +
- Hypericum nitidum +
- Hypnum revolutum +
- Hypopterygium +
- Ibervillea +
- Illicium +
- Iris +
- Iris (sect. Limniris) ser. Longipetalae +
- Iris subg. Limniris +
- Iris verna +
- Ischaemum +
- Isopterygium +
- Isotria +
- Ivesia aperta +
- Ivesia arizonica +
- Ivesia baileyi +
- Ivesia kingii +
- Ivesia rhypara +
- Ivesia sect. Comarella +
- Ivesia shockleyi +
- Jacquinia +
- Jaffueliobryum +
- Jamesia +
- Jatropha dioica +
- Jensia +
- Johanneshowellia +
- Juglandaceae +
- Juncaceae +
- Juncaginaceae +
- Juncus covillei +
- Juncus ensifolius +
- Juncus falcatus +
- Juncus hemiendytus +
- Juncus triglumis +
- Juncus validus +
- Juniperus +
- Juniperus occidentalis +
- Juniperus virginiana +
- Kalmia angustifolia +
- Kalmia microphylla +
- Kalmiopsis +
- Keckiella antirrhinoides +
- Keckiella breviflora +
- Keckiella rothrockii +
- Keckiella ternata +
- Kickxia +
- Kindbergia +
- Kochia +
- Kochia sect. Neokochia +
- Kopsiopsis +
- Kosteletzkya +
- Krigia cespitosa +
- Lagotis glauca +
- Laportea +
- Lasiacis +
- Lasthenia glabrata +
- Lasthenia sect. Burrielia +
- Layia pentachaeta +
- Lechea torreyi +
- Leontodon saxatilis +
- Lepidium lasiocarpum +
- Lepidium virginicum +
- Leptochloa panicea +
- Leptodictyum +
- Leptodontium +
- Leptostomopsis +
- Lessingia micradenia +
- Lessingia pectinata +
- Leucobryum +
- Leucophysalis +
- Lewisia rediviva +
- Leymus innovatus +
- Leymus mollis +
- Leymus simplex +
- Liatris pauciflora +
- Liatris pycnostachya +
- Liatris spicata +
- Liatris squarrosa +
- Lilium humboldtii +
- Lilium washingtonianum +
- Limnanthaceae +
- Limnanthes +
- Limnophila +
- Limosella +
- Linaria dalmatica +
- Lindbergia +
- Linum australe +
- Linum berlandieri +
- Linum carteri +
- Linum floridanum +
- Linum medium +
- Linum rigidum +
- Listera cordata +
- Lithocarpus densiflorus +
- Livistona +
- Lloydia serotina +
- Loeskypnum +
- Lolium temulentum +
- Ludwigia glandulosa +
- Ludwigia sect. Macrocarpon +
- Ludwigia sect. Pterocaulon +
- Luffa +
- Luina +
- Luzula acuminata +
- Luzula subg. Pterodes +
- Lycianthes +
- Lycurus +
- Lyonia ligustrina +
- Lythrum alatum +
- Machaeranthera +
- Magnoliaceae +
- Maianthemum racemosum +
- Malachra +
- Malaxis monophyllos +
- Malvaceae subfam. Grewioideae +
- Malvaceae subfam. Sterculioideae +
- Malvaviscus arboreus +
- Mammillaria heyderi +
- Mammillaria wrightii +
- Manilkara +
- Marantaceae +
- Marsileaceae +
- Matthiola +
- Maxillaria +
- Maytenus +
- Maytenus phyllanthoides +
- Mazus +
- Mecardonia +
- Melica geyeri +
- Melica porteri +
- Melica stricta +
- Mentzelia humilis +
- Mentzelia laevicaulis +
- Mentzelia torreyi +
- Menziesia +
- Mesembryanthemum +
- Meteoriaceae +
- Micropus +
- Micropus californicus +
- Milium +
- Mimulus +
- Mimulus ringens +
- Mirabilis sect. Mirabilis +
- Mohavea +
- Molluginaceae +
- Mollugo +
- Momordica +
- Monolepis +
- Monoptilon +
- Monotropa +
- Mucronea +
- Muehlenbeckia +
- Musa +
- Myosurus apetalus +
- Myricaceae +
- Myriniaceae +
- Narthecium +
- Neckeropsis +
- Nelumbo +
- Nemacaulis denudata +
- Neogaerrhinum +
- Neoholmgrenia +
- Nerisyrenia +
- Nestotus +
- Neviusia +
- Nicolletia +
- Niphotrichum +
- Niphotrichum canescens +
- Niphotrichum sect. Niphotrichum +
- Nitrophila +
- Notholaena californica +
- Notholaena grayi +
- Nothoscordum +
- Nymphaea odorata +
- Nymphaeaceae +
- Oenothera capillifolia +
- Oenothera cinerea +
- Oenothera elata +
- Oenothera fruticosa +
- Oenothera heterophylla +
- Oenothera sect. Calylophus +
- Oenothera sect. Kleinia +
- Oenothera sect. Leucocoryne +
- Oenothera subsect. Campogaura +
- Oenothera villosa +
- Olsynium douglasii +
- Onagraceae +
- Onagraceae tribe Circaeeae +
- Onagraceae tribe Epilobieae +
- Opuntia humifusa +
- Orchidaceae (tribe Cranichideae) subtribe Cranichidinae +
- Orchidaceae (tribe Cymbidieae) subtribe Corallorhizinae +
- Orchidaceae (tribe Cymbidieae) subtribe Cyrtopodiinae +
- Orchidaceae (tribe Epidendreae) subtribe Pleurothallidinae +
- Orchidaceae subfam. Orchidoideae +
- Orchidaceae tribe Arethuseae +
- Orchidaceae tribe Calypsoeae +
- Orchidaceae tribe Malaxideae +
- Orchidaceae tribe Maxillarieae +
- Orchidaceae tribe Orchideae +
- Orchidaceae tribe Vanilleae +
- Ornithogalum +
- Orobanche corymbosa +
- Orobanche parishii +
- Orobanche uniflora +
- Orobanche valida +
- Orthocarpus tolmiei +
- Orthodontium +
- Orthothecium chryseum +
- Osteospermum +
- Oönopsis foliosa +
- Pachysandra +
- Packera bolanderi +
- Packera eurycephala +
- Packera subnuda +
- Paeonia +
- Panicum amarum +
- Panicum anceps +
- Panicum capillare +
- Panicum hallii +
- Panicum miliaceum +
- Panicum sect. Agrostoidea +
- Panicum sect. Bulbosa +
- Panicum sect. Monticola +
- Panicum sect. Verrucosa +
- Papaver macounii +
- Papaver sect. Rhoeadium +
- Pappophorum +
- Paraleucobryum +
- Parapholis +
- Parietaria hespera +
- Parnassia cirrata +
- Paronychia chartacea +
- Paxistima +
- Paysonia lasiocarpa +
- Pectis papposa +
- Pedaliaceae +
- Pedicularis attollens +
- Pedicularis centranthera +
- Pedicularis langsdorffii +
- Pedicularis racemosa +
- Pedicularis semibarbata +
- Pediocactus peeblesianus +
- Pellaea mucronata +
- Peltandra +
- Peniocereus +
- Peniocereus greggii +
- Penstemon +
- Penstemon acuminatus +
- Penstemon ambiguus +
- Penstemon azureus +
- Penstemon cardinalis +
- Penstemon cobaea +
- Penstemon floridus +
- Penstemon fremontii +
- Penstemon fruticiformis +
- Penstemon gairdneri +
- Penstemon glandulosus +
- Penstemon laricifolius +
- Penstemon lentus +
- Penstemon montanus +
- Penstemon nitidus +
- Penstemon pachyphyllus +
- Penstemon pseudospectabilis +
- Penstemon rattanii +
- Penstemon sect. Ambigui +
- Penstemon secundiflorus +
- Penstemon spectabilis +
- Penstemon triflorus +
- Penstemon virgatus +
- Pentachaeta exilis +
- Pentagramma +
- Pereskia +
- Perityle gilensis +
- Perityle lindheimeri +
- Perityle megalocephala +
- Perityle rupestris +
- Perityle staurophylla +
- Petalonyx thurberi +
- Petradoria pumila +
- Petrophytum caespitosum +
- Phanerophlebia +
- Phegopteris +
- Philadelphus texensis +
- Phippsia +
- Phoebanthus +
- Phoenix +
- Phoradendron villosum +
- Phyllanthopsis +
- Phyllanthus abnormis +
- Phyllanthus caroliniensis +
- Phyllostachys +
- Physaria arenosa +
- Physaria douglasii +
- Physaria floribunda +
- Physaria geyeri +
- Physaria gracilis +
- Physaria hemiphysaria +
- Physaria lepidota +
- Physaria newberryi +
- Physaria occidentalis +
- Physaria ovalifolia +
- Physaria saximontana +
- Physcomitrella +
- Phytolacca americana +
- Picradeniopsis +
- Picramniaceae +
- Picris +
- Pieris +
- Pinaropappus +
- Pinus elliottii +
- Pinus torreyana +
- Piper +
- Piperaceae +
- Piperia elegans +
- Piptatherum miliaceum +
- Pireella +
- Pityopsis aspera +
- Pityrogramma +
- Plagiobryum +
- Platanthera blephariglottis +
- Platanthera flava +
- Platygyrium +
- Plaubelia sprengelii +
- Plectocephalus +
- Pleuropogon californicus +
- Pluchea odorata +
- Plumbago +
- Poa alpina +
- Poa bulbosa +
- Poa laxa +
- Poa saltuensis +
- Poa sect. Madropoa +
- Poa sect. Secundae +
- Poa secunda +
- Poa stenantha +
- Poa unilateralis +
- Poaceae subfam. Bambusoideae +
- Poaceae subfam. Centothecoideae +
- Poaceae subfam. Ehrhartoideae +
- Podagrostis +
- Polanisia erosa +
- Polycarpon +
- Polycnemum +
- Polygonaceae +
- Polygonum fowleri +
- Polygonum oxyspermum +
- Polygonum ramosissimum +
- Polygonum sawatchense +
- Polystichum imbricans +
- Polytrichastrum formosum +
- Polytrichastrum sexangulare +
- Polytrichum commune +
- Ponthieva +
- Populus fremontii +
- Portulaca umbraticola +
- Potamogeton foliosus +
- Potamogetonaceae +
- Potentilla arenosa +
- Potentilla effusa +
- Potentilla glaucophylla +
- Potentilla hyparctica +
- Potentilla ovina +
- Potentilla rhyolitica +
- Potentilla sect. Rubrae +
- Potentilla sect. Subjugae +
- Potentilla subviscosa +
- Potentilla thurberi +
- Poteridium +
- Primula cuneifolia +
- Proserpinaca +
- Prunus fasciculata +
- Prunus ilicifolia +
- Prunus virginiana +
- Pseudabutilon +
- Pseudoclappia +
- Pseudotsuga +
- Pseudotsuga menziesii +
- Psidium +
- Psilocarphus brevissimus +
- Psilopilum +
- Pteris cretica +
- Pterocaulon +
- Pterygoneurum subsessile +
- Ptilagrostis +
- Ptychomitriaceae +
- Ptychosperma +
- Ptychostomum +
- Purshia tridentata +
- Pyrola asarifolia +
- Pyrrocoma clementis +
- Pyrrocoma crocea +
- Pyrrocoma lanceolata +
- Pyrrocoma uniflora +
- Pyxidanthera +
- Quadrella +
- Quercus durata +
- Quercus sinuata +
- Rafinesquia +
- Ranunculus aquatilis +
- Ranunculus californicus +
- Ranunculus canus +
- Ranunculus glaberrimus +
- Ranunculus glacialis +
- Ranunculus inamoenus +
- Ranunculus sceleratus +
- Ranunculus subg. Crymodes +
- Raphanus +
- Ratibida peduncularis +
- Rauiella +
- Resedaceae +
- Rhabdoweisia +
- Rhexia mariana +
- Rhinanthus +
- Rhinanthus minor +
- Rhinotropis cornuta +
- Rhinotropis lindheimeri +
- Rhinotropis nitida +
- Rhinotropis rimulicola +
- Rhodobryum +
- Rhododendron minus +
- Rhynchospora harveyi +
- Rhynchostegium +
- Ribes californicum +
- Ribes cereum +
- Ribes inerme +
- Ribes sanguineum +
- Romneya +
- Rorippa palustris +
- Rosa acicularis +
- Rosa carolina +
- Rosa gymnocarpa +
- Rosa pisocarpa +
- Rosa rubiginosa +
- Rosa sect. Minutifoliae +
- Rosaceae tribe Exochordeae +
- Rosaceae tribe Neillieae +
- Rubus idaeus +
- Rubus leucodermis +
- Rudbeckia grandiflora +
- Rumex subg. Rumex +
- Ruppia +
- Saccharum brevibarbe +
- Sacciolepis +
- Sacoila +
- Sacoila lanceolata +
- Sagina decumbens +
- Sagina maxima +
- Sagina nodosa +
- Sagittaria lancifolia +
- Sairocarpus cornutus +
- Salix alaxensis +
- Salix brachycarpa +
- Salix calcicola +
- Salix exigua +
- Salix humilis +
- Salix lasiandra +
- Salix rotundifolia +
- Salix subg. Protitea +
- Salix wolfii +
- Salsola kali +
- Sandbergia +
- Santalaceae +
- Saponaria +
- Sarcobatus +
- Sarracenia alabamensis +
- Sarracenia purpurea +
- Sarracenia rubra +
- Sarraceniaceae +
- Saururaceae +
- Saxifraga bronchialis +
- Saxifraga oppositifolia +
- Saxifraga rivularis +
- Schaefferia +
- Schismus +
- Schizachyrium sanguineum +
- Schizaeaceae +
- Schkuhria +
- Schlotheimia +
- Schoenoplectus acutus +
- Schoenoplectus purshianus +
- Scleranthus +
- Scleria pauciflora +
- Scleropodium touretii +
- Scoliopus +
- Scolymus +
- Scoparia +
- Scopelophila +
- Scorzonera +
- Scouleria +
- Secale +
- Sedum lanceolatum +
- Sedum oreganum +
- Sedum spathulifolium +
- Sedum stenopetalum +
- Sedum wrightii +
- Selaginella arenicola +
- Selaginella mutica +
- Senecio amplectens +
- Senecio bigelovii +
- Senecio serra +
- Sericocarpus oregonensis +
- Setaria pumila +
- Setaria viridis +
- Seymeria pectinata +
- Shortia galacifolia +
- Sibara +
- Sida elliottii +
- Sidalcea asprella +
- Sidalcea calycosa +
- Sideroxylon reclinatum +
- Silene drummondii +
- Silene greenei +
- Silene hookeri +
- Silene involucrata +
- Silphium integrifolium +
- Silphium perfoliatum +
- Silphium radula +
- Silphium terebinthinaceum +
- Simsia +
- Sinapis +
- Sisyrinchium montanum +
- Solidago +
- Solidago altissima +
- Solidago arguta +
- Solidago arguta subsp. arguta +
- Solidago arguta subsp. caroliniana +
- Solidago caesia +
- Solidago canadensis +
- Solidago curtisii +
- Solidago nemoralis +
- Solidago odora +
- Solidago patula +
- Solidago puberula +
- Solidago rugosa subsp. rugosa +
- Solidago sempervirens +
- Solidago stricta +
- Solidago ulmifolia +
- Solidago velutina +
- Sonchus arvensis +
- Sophronanthe +
- Sorbaria +
- Sorbus sect. Sorbus +
- Sorbus sitchensis +
- Sorghum +
- Spergularia canadensis +
- Sphaeralcea angustifolia +
- Sphaeralcea caespitosa +
- Sphaeralcea coccinea +
- Sphaeralcea rusbyi +
- Sphaeromeria potentilloides +
- Sphagnum fimbriatum +
- Sphagnum majus +
- Sphagnum sect. Isocladus +
- Sphagnum sect. Rigida +
- Spiraea alba +
- Spiraea splendens +
- Spiraea tomentosa +
- Spiranthes casei +
- Spiranthes lacera +
- Spiranthes ovalis +
- Spirodela +
- Sporobolus vaginiflorus +
- Staphylea +
- Stebbinsoseris +
- Stegonia +
- Stegonia latifolia +
- Stellaria borealis +
- Stellaria cuspidata +
- Stellaria longipes +
- Stenanthium +
- Stenogonum +
- Stenotus armerioides +
- Stenotus lanuginosus +
- Stephanomeria virgata +
- Stewartia +
- Stipa +
- Stipulicida setacea +
- Streptanthus carinatus +
- Streptanthus cordatus +
- Streptanthus insignis +
- Striga +
- Styracaceae +
- Suksdorfia +
- Sullivantia hapemanii +
- Symphyotrichum concolor +
- Symphyotrichum drummondii +
- Symphyotrichum ericoides +
- Symphyotrichum falcatum +
- Symphyotrichum ontarionis +
- Symphyotrichum pilosum +
- Symphyotrichum puniceum +
- Symphyotrichum subg. Ascendentes +
- Symphyotrichum tenuifolium +
- Symplocos +
- Syntrichopappus +
- Tabernaemontana +
- Takakia +
- Talinum +
- Talipariti tiliaceum +
- Tarenaya +
- Taxaceae +
- Taxodium distichum +
- Teesdalia +
- Telesonix +
- Tetradymia axillaris +
- Tetraneuris linearifolia +
- Tetraneuris scaposa +
- Tetraphidaceae +
- Tetraphis +
- Tetraphis pellucida +
- Tetrapteron +
- Tetrodontium +
- Tetrodontium brownianum +
- Thalia +
- Thalictrum sect. Physocarpum +
- Thalictrum sect. Thalictrum +
- Thamnobryum +
- Thelocactus bicolor +
- Thelypodium howellii +
- Thelypodium sagittatum +
- Thelypteris ovata +
- Thelypteris subg. Meniscium +
- Therorhodion +
- Thesiaceae +
- Thinopyrum intermedium +
- Thlaspi +
- Thrinax +
- Thuidium delicatulum +
- Thuja +
- Thymophylla aurea +
- Tiarella +
- Tidestromia suffruticosa +
- Timmia megapolitana +
- Timmia norvegica +
- Timmiella +
- Tolmiea +
- Tomentypnum +
- Tonella +
- Torreya +
- Torreyochloa +
- Tortella inclinata +
- Tradescantia occidentalis +
- Transberingia bursifolia +
- Trema +
- Tribulus +
- Trichloris +
- Trichodon cylindricus +
- Trichostomum tenuirostre +
- Tridens flavus +
- Tridens muticus +
- Trillium +
- Trillium chloropetalum +
- Trillium erectum +
- Trillium ovatum +
- Trillium pusillum +
- Triphysaria eriantha +
- Triphysaria versicolor +
- Triplasis +
- Tripleurospermum +
- Tripleurospermum maritimum +
- Tripsacum +
- Tripsacum sect. Tripsacum +
- Trixis +
- Tuctoria +
- Turneraceae +
- Ulota hutchinsiae +
- Umbellularia californica +
- Vaccinium sect. Oxycoccus +
- Vauquelinia +
- Veratrum californicum +
- Veratrum viride +
- Veronica wormskjoldii +
- Vincetoxicum +
- Viola adunca +
- Viola biflora +
- Viola lobata +
- Viola palmata +
- Viola pedata +
- Viola pinetorum +
- Viola primulifolia +
- Viola pubescens +
- Viola sagittata +
- Viola walteri +
- Violaceae +
- Vitis +
- Vitis rotundifolia +
- Voitia +
- Warnstorfia +
- Washingtonia +
- Woodsia obtusa +
- Woodsia oregana +
- Xanthisma grindelioides +
- Xanthium +
- Xerophyllum +
- Xylorhiza tortifolia +
- Xyris stricta +
- Yucca baccata +
- Yucca elata +
- Yucca gloriosa +
- Zigadenus venenosus +
- Zizania aquatica +
- Zizania palustris +
- Zostera +
- Zosteraceae +