| 'ena'ena |
Pseudognaphalium sandwicensium |
3 |
| 'ihi |
Portulaca molokiniensis |
19 |
| absinth wormwood |
Artemisia absinthium |
1 |
| acorn peperomia |
Peperomia tetraphylla |
1 |
| aeginetia |
Aeginetia spp. |
1 |
| African asparagus fern |
Asparagus asparagoides |
1 |
| African mile-a-minute |
Mikania cordata |
1 |
| African mustard |
Brassica tournefortii |
4 |
| African rue |
Peganum harmala |
3 |
| African violet |
Saintpaulia spp. |
5 |
| African-lily |
Agapanthus praecox |
1 |
| agave |
Agave spp. |
1 |
| air-potato |
Dioscorea bulbifera |
4 |
| akolea |
Athyrium microphyllum |
1 |
| Alabama croton |
Croton alabamensis |
1 |
| Alaska springbeauty |
Claytonia sarmentosa |
7 |
| Alaska wild rhubarb |
Polygonum alpinum |
14 |
| Aleutian violet |
Viola langsdorffii |
6 |
| Aleutian wormwood |
Artemisia aleutica |
6 |
| alfalfa |
Medicago sativa |
1 |
| alfombrilla |
Drymaria arenarioides |
2 |
| alkali desertparsley |
Lomatium caruifolium |
5 |
| alkali mallow |
Malvella leprosa |
1 |
| alkaliweed |
Cressa truxillensis |
21 |
| alligatorweed |
Alternanthera philoxeroides |
8 |
| alpine besseya |
Besseya alpina |
13 |
| alpine bistort |
Polygonum viviparum |
5 |
| alpine bur cucumber |
Sicyos macrophyllus |
6 |
| alpine knapweed |
Centaurea nigrescens |
2 |
| alpine leafybract aster |
Symphyotrichum foliaceum var. apricum |
1 |
| alpine milkvetch |
Astragalus alpinus |
7 |
| alpine mountainsorrel |
Oxyria digyna |
13 |
| alpine pennycress |
Thlaspi montanum montanum |
7 |
| alpine smelowskia |
Smelowskia calycina |
3 |
| alpine sweetvetch |
Hedysarum alpinum |
9 |
| alpine violet |
Viola labradorica |
5 |
| alpine woodfern |
Dryopteris wallichiana |
14 |
| alsike clover |
Trifolium hybridum |
1 |
| amaryllis |
Amaryllis spp. |
2 |
| American alpine speedwell |
Veronica wormskjoldii |
8 |
| American alumroot |
Heuchera americana |
1 |
| American alumroot |
Heuchera americana var. hispida |
1 |
| American bird's-foot trefoil |
Lotus unifoliolatus var. unifoliolatus |
8 |
| American bugleweed |
Lycopus americanus |
1 |
| American burnweed |
Erechtites hieraciifolius |
4 |
| American germander |
Teucrium canadense |
3 |
| American globeflower |
Trollius laxus ssp. albiflorus |
1 |
| American pasqueflower |
Pulsatilla patens |
1 |
| American pondweed |
Potamogeton nodosus |
21 |
| American speedwell |
Veronica americana |
7 |
| American squawroot |
Conopholis americana |
4 |
| American star-thistle |
Centaurea americana |
1 |
| American sweetflag |
Acorus calamus |
1 |
| American umbrellaleaf |
Diphylleia cymosa |
1 |
| American waterwillow |
Justicia americana |
6 |
| anena |
Boerhavia repens |
22 |
| annual blue-eyed grass |
Sisyrinchium rosulatum |
10 |
| annual bursage |
Ambrosia acanthicarpa |
3 |
| annual pearlwort |
Sagina apetala |
3 |
| annual pricklepoppy |
Argemone polyanthemos |
3 |
| annual ragweed |
Ambrosia artemisiifolia var. elatior |
1 |
| annual sowthistle |
Sonchus oleraceus |
11 |
| apetalous catchfly |
Silene uralensis |
4 |
| Appalachian barren strawberry |
Waldsteinia fragarioides |
1 |
| Appalachian violet |
Viola appalachiensis |
9 |
| apple-of-Peru |
Nicandra physalodes |
6 |
| arctic alpine fleabane |
Erigeron humilis |
11 |
| arctic alpine forget-me-not |
Eritrichium nanum aretioides |
7 |
| arctic alpine forget-me-not |
Eritrichium nanum var. aretioides |
1 |
| arctic aster |
Eurybia sibirica |
15 |
| arctic bellflower |
Campanula uniflora |
3 |
| arctic daisy |
Chrysanthemum arcticum |
13 |
| arctic dock |
Rumex arcticus |
14 |
| arctic groundsel |
Tephroseris atropurpurea |
9 |
| arctic locoweed |
Oxytropis arctica |
1 |
| arctic springbeauty |
Claytonia arctica |
2 |
| arctic stitchwort |
Minuartia arctica |
17 |
| arctic sweet coltsfoot |
Petasites frigidus |
5 |
| arctic wormwood |
Artemisia senjavinensis |
3 |
| arctic yellow violet |
Viola biflora |
1 |
| Arizona mule-ears |
Wyethia arizonica |
3 |
| arnica |
Arnica alpina |
7 |
| aroid palm |
Zamioculcas zamiifolia |
3 |
| arrowleaf balsamroot |
Balsamorhiza sagittata |
1 |
| arrowleaf ragwort |
Senecio triangularis |
4 |
| arrowleaf sida |
Sida rhombifolia |
1 |
| Asian forget-me-not |
Myosotis asiatica |
15 |
| Asian pigeonwings |
Clitoria ternatea |
2 |
| Asian ponysfoot |
Dichondra micrantha |
1 |
| Asiatic bellflower |
Wahlenbergia marginata |
5 |
| Asiatic dayflower |
Commelina communis |
17 |
| Asiatic dock |
Rumex confertus |
5 |
| asparagus |
Asparagus officinalis |
1 |
| asphodel |
Asphodelus albus |
1 |
| aster |
Aster spp. |
2 |
| Aster |
|
1 |
| Australian burnweed |
Erechtites minimus |
2 |
| Australian saltbush |
Atriplex semibaccata |
9 |
| autumn dwarf gentian |
Gentianella amarella ssp. acuta |
1 |
| Avery Peak twinpod |
Physaria alpina |
1 |
| awikiwiki |
Canavalia pubescens |
1 |
| baby sun rose |
Aptenia cordifolia |
2 |
| babysbreath |
Gypsophila paniculata |
4 |
| balloon cottonbush |
Asclepias physocarpa |
2 |
| Barbados aloe |
Aloe vera |
1 |
| barbwire Russian-thistle |
Salsola paulsenii |
2 |
| bashful ragwort |
Senecio pudicus |
8 |
| bashful wakerobin |
Trillium catesbaei |
1 |
| bat-face cuphea |
Cuphea llavea |
1 |
| Bay Biscayne creeping-oxeye |
Sphagneticola trilobata |
4 |
| beach false foxglove |
Agalinis fasciculata |
2 |
| beach morning-glory |
Ipomoea imperati |
9 |
| beach strawberry |
Fragaria chiloensis |
3 |
| bearded clover |
Trifolium barbigerum |
8 |
| beardlip penstemon |
Penstemon barbatus |
4 |
| beardtongues |
Penstemon spp. |
6 |
| beautiful cinquefoil |
Potentilla pulcherrima |
6 |
| beetleweed |
Galax urceolata |
1 |
| belladonna |
Atropa bella-donna |
7 |
| Benghal dayflower |
Commelina benghalensis |
13 |
| Bertero's tufted airplant |
Guzmania berteriana |
1 |
| Bethlehem lungwort |
Pulmonaria saccharata |
1 |
| biennial wormwood |
Artemisia biennis |
2 |
| big chickweed |
Cerastium fontanum ssp. vulgare |
6 |
| big floatingheart |
Nymphoides aquatica |
7 |
| bigleaf lupine |
Lupinus polyphyllus |
2 |
| bird-of-paradise |
Strelitzia reginae |
1 |
| bird-of-paradise |
Strelitzia spp. |
1 |
| birdfoot violet |
Viola pedata |
4 |
| birdseye pearlwort |
Sagina procumbens |
1 |
| birdsfoot trefoil |
Lotus corniculatus |
16 |
| birdsrape mustard |
Brassica rapa |
10 |
| bishops goutweed |
Aegopodium podagraria |
81 |
| bitter ginger |
Zingiber zerumbet |
2 |
| bitter lettuce |
Lactuca virosa |
4 |
| bitter sneezeweed |
Helenium amarum |
4 |
| bittercress |
Cardamine spp. |
1 |
| bittersweet nightshade |
Solanum dulcamara |
44 |
| black cohosh |
Actaea racemosa var. racemosa |
3 |
| Black dog-strangling vine, black swallowwort |
Cynanchum louiseae |
125 |
| black henbane |
Hyoscyamus niger |
18 |
| black knapweed |
Centaurea nigra |
3 |
| black medic |
Medicago lupulina |
6 |
| black mustard |
Brassica nigra |
3 |
| black spleenwort |
Asplenium adiantum-nigrum |
9 |
| black-eyed susan |
Rudbeckia hirta |
8 |
| blackfringe knotweed |
Polygonum cilinode |
1 |
| blackhead fleabane |
Erigeron melanocephalus |
4 |
| bladder campion |
Silene latifolia ssp. alba |
3 |
| bladder campion |
Silene vulgaris |
4 |
| bladderwort |
Utricularia spp. |
2 |
| blanket-flower |
Gaillardia x grandiflora |
2 |
| blanketflower |
Gaillardia aristata |
15 |
| blanketflower |
Gaillardia spp. |
2 |
| blazing star |
Liatris spp. |
1 |
| bleeding heart |
Lamprocapnos spectabilis |
1 |
| blessed milkthistle |
Silybum marianum |
15 |
| blessed thistle |
Cnicus benedictus |
2 |
| bloodberry |
Rivina humilis |
3 |
| bloodflower milkweed |
Asclepias curassavica |
1 |
| bloodroot |
Sanguinaria canadensis |
4 |
| blow wives |
Achyrachaena mollis |
11 |
| blue anise sage |
Salvia guaranitica |
1 |
| blue Jacob's-ladder |
Polemonium caeruleum |
1 |
| blue lettuce |
Lactuca tatarica var. pulchella |
2 |
| blue mistflower |
Conoclinium coelestinum |
10 |
| blue mustard |
Chorispora tenella |
3 |
| blue vervain |
Verbena hastata |
1 |
| blue wild indigo |
Baptisia australis |
1 |
| bluebead-lily |
Clintonia borealis |
2 |
| bluedicks |
Dichelostemma capitatum |
2 |
| blueflag iris |
Iris versicolor |
1 |
| blueflower butterwort |
Pinguicula caerulea |
4 |
| blueflower eryngo |
Eryngium integrifolium |
2 |
| bluet |
Houstonia spp. |
1 |
| bluntleaf yellowcress |
Rorippa curvipes |
3 |
| bluntseed sweetroot |
Osmorhiza depauperata |
9 |
| Boccone's sandspurry |
Spergularia bocconii |
3 |
| boreal chickweed |
Cerastium tomentosum |
1 |
| boreal starwort |
Stellaria borealis |
9 |
| boreal sweetvetch |
Hedysarum boreale |
1 |
| bouncingbet |
Saponaria officinalis |
9 |
| Bowman's root |
Gillenia trifoliata |
1 |
| bracted lousewort |
Pedicularis bracteosa |
2 |
| branched burreed |
Sparganium erectum |
2 |
| brassbuttons |
Cotula coronopifolia |
4 |
| Brazilian vervain |
Verbena incompta |
5 |
| bridal bouquet |
Poranopsis paniculata |
1 |
| bristly hawksbeard |
Crepis setosa |
1 |
| bristly mallow |
Modiola caroliniana |
9 |
| bristly oxtongue |
Helminthotheca echioides |
3 |
| British yellowhead |
Inula britannica |
4 |
| brittleleaf naiad |
Najas minor |
31 |
| Britton's skullcap |
Scutellaria brittonii |
1 |
| Britton's wild petunia |
Ruellia simplex |
1 |
| broadleaf arnica |
Arnica latifolia |
1 |
| broadleaf buttonweed |
Spermacoce alata |
3 |
| broadleaf filaree |
Erodium botrys |
2 |
| broadleaf forget-me-not |
Myosotis latifolia |
2 |
| broadleaf plantain |
Plantago major |
9 |
| brook saxifrage |
Saxifraga odontoloma |
7 |
| broom snakeweed |
Gutierrezia sarothrae |
3 |
| broomleaf toadflax |
Linaria genistifolia |
1 |
| broomlike ragwort |
Senecio spartioides var. spartioides |
6 |
| broomrape |
Orobanche loricata |
1 |
| brown knapweed |
Centaurea jacea |
3 |
| buckhorn plantain |
Plantago lanceolata |
8 |
| buffalo gourd |
Cucurbita foetidissima |
3 |
| buffalobur |
Solanum rostratum |
3 |
| bulbous waterhemlock |
Cicuta bulbifera |
1 |
| bulbous woodland-star |
Lithophragma glabrum |
15 |
| bull clover |
Trifolium fucatum |
4 |
| bull cottonthistle |
Onopordum tauricum |
2 |
| bull thistle |
Cirsium vulgare |
35 |
| bullnettle |
Cnidoscolus stimulosus |
2 |
| bunchberry |
Cornus canadensis |
4 |
| bunchleaf penstemon |
Penstemon heterophyllus |
1 |
| bur beggarticks |
Bidens tripartita |
2 |
| bur chervil |
Anthriscus caucalis |
3 |
| burcucumber |
Sicyos angulatus |
4 |
| burmarigold |
Bidens laevis |
12 |
| bursting-heart |
Euonymus americanus |
8 |
| butterfly milkweed |
Asclepias tuberosa |
8 |
| button snakeroot |
Eryngium yuccifolium |
4 |
| Cainville thistle |
Cirsium calcareum |
1 |
| California arrowhead |
Sagittaria montevidensis |
1 |
| California burclover |
Medicago polymorpha |
2 |
| California eryngo |
Eryngium aristulatum |
3 |
| California goldfields |
Lasthenia californica |
13 |
| California mugwort |
Artemisia douglasiana |
2 |
| California nettle |
Urtica dioica ssp. gracilis |
13 |
| Canada goldenrod |
Solidago canadensis |
11 |
| Canada lily |
Lilium canadense |
1 |
| Canada thistle |
Cirsium arvense |
91 |
| Canadian horseweed |
Conyza canadensis var. pusilla |
1 |
| Canadian lousewort |
Pedicularis canadensis |
4 |
| Canadian white violet |
Viola canadensis |
11 |
| canary violet |
Viola praemorsa |
2 |
| candyroot |
Polygala nana |
3 |
| canna |
Canna spp. |
3 |
| canyon dodder |
Cuscuta ceanothi |
1 |
| cape ivy |
Delairea odorata |
9 |
| capeweed |
Arctotheca calendula |
4 |
| capitate lousewort |
Pedicularis capitata |
6 |
| capparis |
Capparis odoratissima |
1 |
| captiate valerian |
Valeriana capitata |
7 |
| cardinalflower |
Lobelia cardinalis |
1 |
| cardoon |
Cynara cardunculus |
2 |
| Carmichael's monkshood |
Aconitum carmichaelii |
1 |
| carnation |
Dianthus spp. |
9 |
| Carolina dichondra |
Dichondra carolinensis |
3 |
| Carolina frostweed |
Helianthemum carolinianum |
9 |
| Carolina geranium |
Geranium carolinianum |
3 |
| Carolina mosquitofern |
Azolla caroliniana |
16 |
| Carolina puccoon |
Lithospermum caroliniense |
5 |
| Carolina redroot |
Lachnanthes caroliana |
4 |
| carpet bugle |
Ajuga reptans |
1 |
| carpetweed |
Mollugo verticillata |
16 |
| catchweed bedstraw |
Galium aparine |
2 |
| cathedral bells |
Kalanchoe pinnata |
1 |
| ceniza |
Leucophyllum frutescens |
2 |
| chamber bitter |
Phyllanthus urinaria |
3 |
| Chamisso arnica |
Arnica chamissonis |
2 |
| chaparral dodder |
Cuscuta californica |
1 |
| chicory |
Cichorium intybus |
11 |
| Chilean lanterntree |
Crinodendron hookerianum |
2 |
| Chinese sprangletop |
Leptochloa chinensis |
1 |
| Chinese violet |
Asystasia gangetica |
4 |
| Chinese yam |
Dioscorea polystachya |
2 |
| chukchi primrose |
Primula tschuktschorum |
7 |
| clammy goosefoot |
Dysphania pumilio |
3 |
| clasping coneflower |
Dracopis amplexicaulis |
1 |
| clasping heliotrope |
Heliotropium amplexicaule |
2 |
| clasping pepperweed |
Lepidium perfoliatum |
5 |
| clasping Venus' looking-glass |
Triodanis perfoliata |
1 |
| climbing hempweed |
Mikania scandens |
1 |
| clover dodder |
Cuscuta epithymum |
1 |
| clustered bellflower |
Campanula glomerata |
1 |
| clusterflower |
Flaveria trinervia |
3 |
| coastal nehe |
Lipochaeta lavarum |
9 |
| coastal plain honeycombhead |
Balduina angustifolia |
6 |
| coastal plain pennywort |
Hydrocotyle bonariensis |
4 |
| coastal plain St. Johnswort |
Hypericum brachyphyllum |
2 |
| coat buttons |
Tridax procumbens |
10 |
| cobweb houseleek |
Sempervivum arachnoideum |
1 |
| coco yam, wild taro |
Colocasia esculenta |
14 |
| coffee senna |
Senna occidentalis |
1 |
| Colorado blue columbine |
Aquilegia caerulea |
7 |
| Colorado ragwort |
Senecio soldanella |
7 |
| coltsfoot |
Tussilago farfara |
56 |
| Columbian monkshood |
Aconitum columbianum |
1 |
| columbine |
Aquilegia spp. |
6 |
| common arrowhead |
Sagittaria latifolia |
7 |
| common blue violet |
Viola sororia |
5 |
| common borage |
Borago officinalis |
3 |
| common brighteyes |
Reichardia picroides |
6 |
| common burdock |
Arctium minus |
7 |
| common butterwort |
Pinguicula vulgaris |
1 |
| common caraway |
Carum carvi |
8 |
| common cattail |
Typha latifolia |
8 |
| common chickweed |
Stellaria media |
5 |
| common chickweed |
Stellaria pallida |
4 |
| common cocklebur |
Xanthium strumarium |
27 |
| common crupina |
Crupina vulgaris |
7 |
| common duckmeat |
Spirodela polyrrhiza |
6 |
| common evening-primrose |
Oenothera biennis |
2 |
| common fiddleneck |
Amsinckia menziesii var. intermedia |
3 |
| common four-o'clock |
Mirabilis jalapa |
1 |
| common globe amaranth |
Gomphrena globosa |
1 |
| common groundsel |
Senecio vulgaris |
7 |
| common kidneyvetch |
Anthyllis vulneraria |
1 |
| common lespedeza |
Kummerowia striata |
3 |
| common mallow |
Malva neglecta |
1 |
| common milkweed |
Asclepias syriaca |
7 |
| common mouse-ear chickweed |
Cerastium fontanum |
5 |
| common mullein |
Verbascum thapsus |
28 |
| common pokeweed |
Phytolacca americana |
12 |
| common purslane |
Portulaca oleracea |
20 |
| common ragweed |
Ambrosia artemisiifolia |
16 |
| common salsify |
Tragopogon porrifolius |
3 |
| common sneezeweed |
Helenium autumnale |
1 |
| common spiderwort |
Tradescantia ohiensis |
3 |
| common St. Johnswort |
Hypericum perforatum |
14 |
| common stickyseed |
Blennosperma nanum |
6 |
| common sunflower |
Helianthus annuus |
19 |
| common tansy |
Tanacetum vulgare |
21 |
| common tarweed |
Centromadia pungens ssp. pungens |
6 |
| common teasel |
Dipsacus fullonum |
6 |
| common thyme |
Thymus vulgaris |
1 |
| common valerian |
Valeriana officinalis |
77 |
| common vetch |
Vicia sativa |
7 |
| common yarrow |
Achillea millefolium |
19 |
| compact prairie clover |
Dalea compacta |
1 |
| coneflowers |
Echinacea spp. |
2 |
| Confederate wakerobin |
Trillium reliquum |
7 |
| coontail |
Ceratophyllum demersum |
7 |
| copper iris |
Iris fulva |
6 |
| coppery mesemb |
Malephora crocea |
1 |
| coralbells |
Heuchera sanguinea |
1 |
| corn chamomile |
Anthemis arvensis |
2 |
| corn poppy |
Papaver rhoeas |
1 |
| corn speedwell |
Veronica arvensis |
2 |
| corn spurry |
Spergula arvensis |
1 |
| cosmos |
Cosmos spp. |
1 |
| cottonbatting plant |
Pseudognaphalium stramineum |
1 |
| Coulter's horseweed |
Laennecia coulteri |
1 |
| cow-wheat |
Melampyrum lineare |
1 |
| cowpea witchweed |
Striga gesnerioides |
1 |
| coyotethistle |
Eryngium vaseyi |
6 |
| Crandall's beardtongue |
Penstemon crandallii |
5 |
| Crandall's beardtongue |
Penstemon crandallii ssp. procumbens |
4 |
| creeping bellflower |
Campanula rapunculoides |
3 |
| creeping burhead |
Echinodorus cordifolius |
9 |
| creeping buttercup |
Ranunculus repens |
50 |
| creeping croftonweed |
Ageratina riparia |
4 |
| creeping cucumber |
Melothria pendula |
2 |
| creeping lespedeza |
Lespedeza repens |
1 |
| creeping sibbaldia |
Sibbaldia procumbens |
2 |
| creeping waterprimrose |
Ludwigia peploides |
13 |
| creeping woodsorrel |
Oxalis corniculata |
3 |
| crenate broomrape |
Orobanche crenata |
1 |
| crested latesummer mint |
Elsholtzia ciliata |
84 |
| Cretan brake |
Pteris cretica |
2 |
| crimson clover |
Trifolium incarnatum |
2 |
| crimsoneyed rosemallow |
Hibiscus moscheutos |
1 |
| crinkleroot |
Cardamine diphylla |
1 |
| crocus |
Crocus heufelianus |
2 |
| crocus |
Crocus spp. |
1 |
| croftonweed |
Ageratina adenophora |
12 |
| crown brodiaea |
Brodiaea coronaria |
11 |
| crownbeard |
Verbesina encelioides |
16 |
| crowned woodfern |
Dryopteris fuscoatra |
1 |
| crownvetch |
Securigera varia |
17 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
2 |
| Cucamonga manroot |
Marah macrocarpus |
3 |
| cuckoo bittercress |
Cardamine pratensis |
6 |
| cucumber |
Cucumis sativus |
2 |
| cultivated tobacco - type unspecified |
Nicotiana tabacum |
1 |
| cup rosinweed |
Silphium perfoliatum |
46 |
| Cupid's-shaving-brush |
Emilia fosbergii |
3 |
| curly dock |
Rumex crispus |
5 |
| curlycup gumweed |
Grindelia squarrosa |
7 |
| curlycup gumweed |
Grindelia squarrosa var. serrulata |
4 |
| curlyleaf pondweed |
Potamogeton crispus |
14 |
| cushion spurge |
Euphorbia epithymoides |
3 |
| cutleaf burnweed |
Erechtites glomeratus |
2 |
| cutleaf coneflower |
Rudbeckia laciniata |
9 |
| cutleaf coneflower |
Rudbeckia laciniata var. ampla |
1 |
| cutleaf geranium |
Geranium dissectum |
7 |
| cutleaf goosefoot |
Chenopodium multifidum |
3 |
| cutleaf groundcherry |
Physalis angulata |
1 |
| cutleaf nightshade |
Solanum triflorum |
1 |
| cutleaf teasel |
Dipsacus laciniatus |
6 |
| cutleaf toothwort |
Cardamine concatenata |
2 |
| cypress spurge |
Euphorbia cyparissias |
63 |
| daffodils |
Narcissus spp. |
17 |
| Dakota vervain |
Glandularia bipinnatifida |
1 |
| Dalmatian toadflax |
Linaria dalmatica |
4 |
| dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
1 |
| damesrocket |
Hesperis matronalis |
53 |
| dandelion |
Taraxacum officinale |
12 |
| Dane's dwarf gentian |
Gentianella tenella |
6 |
| dark tobacco |
Nicotiana tabacum (dark type) |
4 |
| darkthroat shootingstar |
Dodecatheon pulchellum |
1 |
| daylily |
Hemerocallis spp. |
23 |
| dense blazing star |
Liatris spicata |
1 |
| dense spleenwort |
Asplenium trichomanes ssp. densum |
4 |
| Deptford pink |
Dianthus armeria |
4 |
| desert broomrape |
Orobanche cooperi |
1 |
| desert fivespot |
Eremalche rotundifolia |
2 |
| desert globemallow |
Sphaeralcea ambigua |
2 |
| desert paintbrush |
Castilleja angustifolia dubia |
3 |
| desert princesplume |
Stanleya pinnata |
1 |
| devil's horsewhip |
Achyranthes aspera |
11 |
| devils beggarticks |
Bidens frondosa |
4 |
| diamondleaf saxifrage |
Saxifraga rhomboidea |
20 |
| diffuse knapweed |
Centaurea diffusa |
10 |
| dimpled troutlily |
Erythronium umbilicatum |
6 |
| dock |
Rumex spp. |
5 |
| dog-strangling vine, European swallowwort |
Cynanchum rossicum |
61 |
| dogfennel |
Eupatorium capillifolium |
4 |
| dollarleaf |
Rhynchosia reniformis |
4 |
| dotted polypody |
Polypodium pellucidum |
6 |
| dotted saxifrage |
Saxifraga nelsoniana ssp. nelsoniana |
2 |
| Douglas' dustymaiden |
Chaenactis douglasii |
1 |
| Douglas' meadowfoam |
Limnanthes douglasii |
5 |
| Douglas' silverpuffs |
Microseris douglasii |
4 |
| dove pincushions |
Scabiosa columbaria |
1 |
| downy rattlesnake plantain |
Goodyera pubescens |
2 |
| downy yellow violet |
Viola pubescens |
6 |
| drumheads |
Polygala cruciata |
2 |
| Drummond's rockcress |
Arabis drummondii |
11 |
| Drummond's skullcap |
Scutellaria drummondii |
1 |
| duck-lettuce |
Ottelia alismoides |
1 |
| ducksalad |
Heteranthera limosa |
1 |
| dutch crocus |
Crocus vernus |
3 |
| dutchman's breeches |
Dicentra cucullaria |
5 |
| dwarf calicoflower |
Downingia pusilla |
5 |
| dwarf cinquefoil |
Potentilla canadensis |
1 |
| dwarf clover |
Trifolium nanum |
1 |
| dwarf crested iris |
Iris cristata |
1 |
| dwarf fireweed |
Chamerion latifolium |
11 |
| dwarf lake iris |
Iris lacustris |
1 |
| dwarf lilyturf |
Ophiopogon japonicus |
1 |
| dwarf mountain ragwort |
Senecio fremontii |
5 |
| dwarf naupaka |
Scaevola coriacea |
16 |
| dwarf netvein hollyfern |
Cyrtomium caryotideum |
2 |
| dwarf palmetto |
Sabal minor |
1 |
| dwarf spikemoss |
Selaginella arbuscula |
2 |
| dwarf St. Johnswort |
Hypericum mutilum |
4 |
| dwarf sundew |
Drosera brevifolia |
3 |
| dwarf violet iris |
Iris verna |
3 |
| Dyer's woad |
Isatis tinctoria |
6 |
| eared salvinia |
Salvinia auriculata |
1 |
| early wintercress |
Barbarea verna |
3 |
| eastern bluestar |
Amsonia tabernaemontana |
1 |
| eastern false rue anemone |
Enemion biternatum |
1 |
| eastern milkpea |
Galactia regularis |
2 |
| eastern turkeybeard |
Xerophyllum asphodeloides |
1 |
| Eastwood's fiddleneck |
Amsinckia eastwoodiae |
1 |
| Eaton penstemon |
Penstemon eatonii |
3 |
| eclipta |
Eclipta prostrata |
1 |
| Egyptian broomrape |
Orobanche aegyptiaca |
1 |
| Egyptian starcluster |
Pentas lanceolata |
1 |
| elephant creeper |
Argyreia nervosa |
4 |
| elephanthead lousewort |
Pedicularis groenlandica |
8 |
| elephantsfoot |
Elephantopus tomentosus |
2 |
| elkweed |
Frasera speciosa |
1 |
| eltrot |
Heracleum sphondylium |
6 |
| Engelmann's aster |
Eucephalus engelmannii |
2 |
| English catchfly |
Silene gallica |
4 |
| English daisy |
Bellis perennis |
2 |
| entireleaf Indian paintbrush |
Castilleja indivisa |
2 |
| Epimedium |
Epimedium x rubrum |
1 |
| estrellita |
Asteranthera ovata |
4 |
| Eurasian watermilfoil |
Myriophyllum spicatum |
45 |
| European centaury |
Centaurium erythraea |
1 |
| European columbine |
Aquilegia vulgaris |
2 |
| European frostweed |
Xolantha guttata |
2 |
| European heliotrope |
Heliotropium europaeum |
2 |
| European pasqueflower |
Pulsatilla vulgaris |
1 |
| European pepperwort |
Marsilea quadrifolia |
45 |
| European sticktight |
Lappula squarrosa |
7 |
| evening-primrose |
Oenothera spp. |
1 |
| evergreen candytuft |
Iberis sempervirens |
1 |
| fall phlox |
Phlox paniculata |
3 |
| false bird of paradise |
Heliconia rostrata |
1 |
| false buttonweed |
Spermacoce articularis |
1 |
| false chamomile |
Tripleurospermum perforatum |
5 |
| false lily-of-the-valley |
Maianthemum canadense |
1 |
| false mayweed |
Tripleurospermum maritimum |
9 |
| fanwort |
Cabomba caroliniana |
54 |
| featherleaf fleabane |
Erigeron pinnatisectus |
6 |
| feathery false lily of the valley |
Maianthemum racemosum ssp. racemosum |
2 |
| felwort |
Swertia perennis |
1 |
| Fendler's cowbane |
Oxypolis fendleri |
7 |
| Fendler's groundsel |
Packera fendleri |
1 |
| Fendler's rockcress |
Arabis fendleri |
1 |
| Fendler's sandwort |
Arenaria fendleri |
1 |
| fennel |
Foeniculum vulgare |
6 |
| fernleaf biscuitroot |
Lomatium dissectum |
6 |
| fernleaf phacelia |
Phacelia bipinnatifida |
2 |
| fernleaf yarrow |
Achillea filipendulina |
1 |
| feverfew |
Tanacetum parthenium |
7 |
| field bindweed |
Convolvulus arvensis |
34 |
| field chickweed |
Cerastium arvense |
1 |
| field chickweed |
Cerastium arvense ssp. strictum |
1 |
| field dodder |
Cuscuta pentagona |
3 |
| field horsetail |
Equisetum arvense |
3 |
| field Indian paintbrush |
Castilleja arvensis |
1 |
| field madder |
Sherardia arvensis |
4 |
| field marigold |
Calendula arvensis |
2 |
| field pansy |
Viola bicolor |
2 |
| field pennycress |
Thlaspi arvense |
11 |
| field pepperweed |
Lepidium campestre |
8 |
| finebranched popcornflower |
Plagiobothrys leptocladus |
2 |
| fire pink |
Silene virginica |
2 |
| fireweed |
Chamerion angustifolium |
19 |
| Fitch's tarweed |
Hemizonia fitchii |
17 |
| fivehook bassia |
Bassia hyssopifolia |
5 |
| fiveleaf yam |
Dioscorea pentaphylla |
1 |
| fivenerve helianthella |
Helianthella quinquenervis |
5 |
| fivestamen miterwort |
Mitella pentandra |
7 |
| flamingo flower |
Anthurium andraeanum |
1 |
| flatbud pricklypoppy |
Argemone munita |
1 |
| flax dodder |
Cuscuta epilinum |
1 |
| flaxleaf false foxglove |
Agalinis linifolia |
6 |
| flaxleaf pimpernel |
Anagallis monelli |
1 |
| flaxleaf plainsmustard |
Schoenocrambe linifolia |
5 |
| flixweed |
Descurainia sophia |
6 |
| floating bladderwort |
Utricularia inflata |
2 |
| floating pennywort |
Hydrocotyle ranunculoides |
3 |
| Florida betony |
Stachys floridana |
5 |
| Florida bluehearts |
Buchnera floridana |
5 |
| Florida wild lettuce |
Lactuca floridana |
2 |
| flowering rush |
Butomus umbellatus |
17 |
| flowering spurge |
Euphorbia corollata |
1 |
| flue-cured tobacco |
Nicotiana tabacum (flue-cured type) |
2 |
| flypoison |
Amianthium muscitoxicum |
4 |
| foamflower |
Tiarella wherryi |
2 |
| folded calicoflower |
Downingia ornatissima |
10 |
| forked bluecurls |
Trichostema dichotomum |
5 |
| fourspike heliotrope |
Heliotropium procumbens |
2 |
| foxglove |
Digitalis purpurea |
6 |
| foxtail clubmoss |
Lycopodiella alopecuroides |
1 |
| fragrant bedstraw |
Galium triflorum |
11 |
| Fremont's goldfields |
Lasthenia fremontii |
4 |
| fringed bluestar |
Amsonia ciliata var. tenuifolia |
3 |
| front range beardtongue |
Penstemon virens |
3 |
| Fuller's teasel |
Dipsacus sativus |
3 |
| fuscate groundsel |
Tephroseris lindstroemii |
3 |
| garden loosestrife |
Lysimachia vulgaris |
39 |
| garden orach |
Atriplex hortensis |
2 |
| garden spurge |
Chamaesyce hirta |
2 |
| garlic mustard |
Alliaria petiolata |
171 |
| gasplant |
Dictamnus albus |
1 |
| Gaudichaud's halberd fern |
Tectaria gaudichaudii |
3 |
| gentian |
Gentiana brachyphylla |
1 |
| Georgia aster |
Symphyotrichum georgianum |
3 |
| Geraldton carnation weed |
Euphorbia terracina |
2 |
| geranium |
Geranium x cantabrigiense |
1 |
| geum |
Geum coccineum |
1 |
| giant angelica |
Angelica ampla |
7 |
| giant hogweed |
Heracleum mantegazzianum |
133 |
| giant lousewort |
Pedicularis procera |
3 |
| giant ragweed |
Ambrosia trifida |
15 |
| giant red Indian paintbrush |
Castilleja miniata |
11 |
| giant reed |
Arundo donax |
37 |
| giant salvinia |
Salvinia molesta |
24 |
| giant sumpweed |
Cyclachaena xanthifolia |
10 |
| glacier avens |
Geum glaciale |
3 |
| glandular Cape marigold |
Dimorphotheca sinuata |
2 |
| globe candytuft |
Iberis umbellata |
1 |
| globifera |
Micranthemum umbrosum |
16 |
| goatsbeard |
Tragopogon spp. |
1 |
| goatsrue |
Galega officinalis |
1 |
| golden draba |
Draba aurea |
8 |
| goldenrod |
Solidago spp. |
1 |
| goosefoot |
Chenopodium spp. |
3 |
| gopherweed |
Baptisia lanceolata |
2 |
| Gordon's ivesia |
Ivesia gordonii |
11 |
| graceful sandmat |
Chamaesyce hypericifolia |
2 |
| grape-leaf anemone |
Anemone tomentosa |
1 |
| grassleaf Barbara's buttons |
Marshallia graminifolia var. cynanthera |
4 |
| Gray's angelica |
Angelica grayi |
16 |
| graygreen thistle |
Cirsium canovirens |
2 |
| graylocks four-nerve daisy |
Tetraneuris grandiflora |
10 |
| Great Valley gumweed |
Grindelia camporum |
8 |
| Great Valley gumweed |
Grindelia camporum var. camporum |
1 |
| great yellowcress |
Rorippa amphibia |
106 |
| greater ammi |
Ammi majus |
5 |
| greater celandine |
Chelidonium majus |
48 |
| greater swinecress |
Coronopus squamatus |
4 |
| Greek thimbleweed |
Anemone blanda |
2 |
| green antelopehorn |
Asclepias viridis |
1 |
| green hellebore |
Helleborus viridis |
1 |
| Greene's popcornflower |
Plagiobothrys greenei |
11 |
| greenflower pepperweed |
Lepidium densiflorum |
18 |
| greenleaf ticktrefoil |
Desmodium intortum |
2 |
| ground ivy |
Glechoma hederacea |
61 |
| groundsel |
Tephroseris frigida |
5 |
| Gunnison's mariposa lily |
Calochortus gunnisonii |
4 |
| hairy beggarticks |
Bidens pilosa |
8 |
| hairy bittercress |
Cardamine hirsuta |
83 |
| hairy cat's ear |
Hypochaeris radicata |
9 |
| hairy chaffhead |
Carphephorus paniculatus |
1 |
| hairy clematis |
Clematis hirsutissima |
2 |
| hairy false goldenaster |
Heterotheca villosa |
12 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy galinsoga |
Galinsoga ciliata |
2 |
| hairy galinsoga |
Galinsoga quadriradiata |
2 |
| hairy nightshade |
Solanum physalifolium |
1 |
| hairy pepperwort |
Marsilea vestita |
6 |
| hairy purslane |
Portulaca villosa |
22 |
| hairy rockcress |
Arabis hirsuta |
6 |
| hairy sandspurry |
Spergularia villosa |
5 |
| hairy vetch |
Vicia villosa |
5 |
| Hairy wachendorfia |
Wachendorfia hirsuta |
1 |
| hairy whitetop |
Cardaria pubescens |
9 |
| hairy willowherb |
Epilobium hirsutum |
3 |
| hairy woodrose |
Merremia aegyptia |
5 |
| hairyseed bahia |
Bahia absinthifolia |
1 |
| halberdleaf rosemallow |
Hibiscus laevis |
2 |
| halogeton |
Halogeton glomeratus |
14 |
| Harbour's beardtoungue |
Penstemon harbourii |
17 |
| hare's ear |
Bupleurum rotundifolium |
4 |
| harebell |
Campanula rotundifolia |
7 |
| harlequin calicoflower |
Downingia insignis |
10 |
| Hawai'i air fern |
Pneumatopteris sandwicensis |
2 |
| Hawai'I birdnest fern |
Asplenium nidus |
4 |
| Hawai'i stingingnettle |
Hesperocnide sandwicensis |
2 |
| Hawai'i twinsorus fern |
Diplazium sandwichianum |
6 |
| Hawaii morningglory |
Ipomoea tuboides |
8 |
| hawkweeds |
Hieracium spp. |
2 |
| healall |
Prunella vulgaris |
5 |
| heartleaf bittercress |
Cardamine cordifolia |
8 |
| heartleaf foamflower |
Tiarella cordifolia |
2 |
| heartleaf saxifrage |
Saxifraga nelsoniana |
18 |
| hedge mustard |
Sisymbrium officinale |
2 |
| hedgeparsley |
Torilis arvensis |
2 |
| hemp dogbane |
Apocynum cannabinum |
14 |
| hemp sesbania |
Sesbania exaltata |
5 |
| henbit |
Lamium amplexicaule |
10 |
| herb bennet |
Geum urbanum |
1 |
| herb paris |
Paris quadrifolia |
5 |
| herb-robert |
Geranium robertianum |
1 |
| hibiscus |
Hibiscus spp. |
4 |
| Hill mustard |
Bunias orientalis |
11 |
| Hillebrand's hollyfern |
Polystichum hillebrandii |
1 |
| hinahina kahakai |
Nama sandwicense |
4 |
| hoary cress |
Lepidium draba |
14 |
| hoary Townsend daisy |
Townsendia incana |
2 |
| Holm's ragwort |
Senecio amplectens var. holmii |
4 |
| honeyvine swallowwort |
Cynanchum laeve |
14 |
| hooded pitcherplant |
Sarracenia minor |
16 |
| hookedspur violet |
Viola adunca |
11 |
| hophornbeam copperleaf |
Acalypha ostryifolia |
3 |
| horned dandelion |
Taraxacum ceratophorum |
7 |
| horned pondweed |
Zannichellia palustris |
5 |
| horse purslane |
Trianthema portulacastrum |
4 |
| horsenettle |
Solanum carolinense |
10 |
| horseweed |
Conyza canadensis |
17 |
| hosta |
Hosta spp. |
5 |
| hottentot fig |
Carpobrotus edulis |
3 |
| houndstongue |
Cynoglossum officinale |
10 |
| humped bladderwort |
Utricularia gibba |
15 |
| hydrilla |
Hydrilla verticillata |
72 |
| hyssop loosestrife |
Lythrum hyssopifolium |
10 |
| Iberian knapweed |
Centaurea pullata |
2 |
| Illinois bundleflower |
Desmanthus illinoensis |
1 |
| illscented wakerobin |
Trillium rugelii |
1 |
| Indian camphorweed |
Pluchea indica |
4 |
| Indian cucumber |
Medeola virginiana |
1 |
| Indian mustard |
Brassica juncea |
1 |
| Indian paintbrush |
Castilleja spp. |
2 |
| Indian pink |
Spigelia marilandica |
2 |
| Indian thistle |
Cirsium edule |
3 |
| Indian waltheria |
Waltheria indica |
14 |
| Indianpipe |
Monotropa uniflora |
2 |
| Indiantobacco |
Lobelia inflata |
3 |
| iris |
Iris spp. |
2 |
| island swordfern |
Polystichum haleakalense |
2 |
| Italian hawksbeard |
Crepis bursifolia |
2 |
| Italian plumeless thistle |
Carduus pycnocephalus |
7 |
| Ithuriel's spear |
Triteleia laxa |
1 |
| ivy gourd |
Coccinia grandis |
7 |
| ivyleaf morningglory |
Ipomoea hederacea |
10 |
| Jack in the pulpit |
Arisaema triphyllum |
5 |
| Jackson Hole thistle |
Cirsium subniveum |
2 |
| Jamaica vervain |
Stachytarpheta jamaicensis |
2 |
| Jamaican nightshade |
Solanum jamaicense |
3 |
| Japanese anemone |
Anemone x hybrida |
1 |
| Japanese chaff flower |
Achyranthes japonica |
2 |
| Japanese dodder |
Cuscuta japonica |
26 |
| Japanese false spleenwort |
Deparia petersenii |
1 |
| Japanese hedgeparsley |
Torilis japonica |
1 |
| Japanese knotweed |
Fallopia japonica |
143 |
| Japanese morningglory |
Ipomoea nil |
2 |
| Japanese pachysandra |
Pachysandra terminalis |
1 |
| Japanese thistle |
Cirsium japonicum |
1 |
| Jersey cudweed |
Pseudognaphalium luteoalbum |
9 |
| Jerusalem artichoke |
Helianthus tuberosus |
9 |
| Jerusalem-oak goosefoot |
Chenopodium botrys |
1 |
| jeweled wakerobin |
Trillium simile |
1 |
| jewelweed |
Impatiens capensis |
10 |
| jimsonweed |
Datura stramonium |
62 |
| Kahila garland-lily |
Hedychium gardnerianum |
3 |
| Kalealaha beggarticks |
Bidens micrantha ssp. kalealaha |
1 |
| Kellogg's tarweed |
Deinandra kelloggii |
1 |
| Kenilworth ivy |
Cymbalaria muralis |
1 |
| khakiweed |
Alternanthera pungens |
1 |
| kilaw |
Dryopteris glabra |
7 |
| knapweeds |
Centaurea spp. |
1 |
| knotweed |
Polygonum spp. |
3 |
| Korean lespedeza |
Kummerowia stipulacea |
2 |
| Kotzebue's grass of Parnassus |
Parnassia kotzebuei |
7 |
| Kowhai |
Sophora tetraptera |
1 |
| Kunana pepperwort |
Lepidium bidentatum var. owaihiense |
7 |
| Kunth's hacksaw fern |
Doodia kunthiana |
2 |
| Kure Atoll nehe |
Lipochaeta integrifolia |
19 |
| ladysthumb |
Persicaria maculosa |
6 |
| lagotis |
Lagotis integrifolia |
3 |
| lambsquarters |
Chenopodium album |
10 |
| lanceleaf arrowhead |
Sagittaria lancifolia |
11 |
| lanceleaf figwort |
Scrophularia lanceolata |
10 |
| lanceleaf tickseed |
Coreopsis lanceolata |
10 |
| lanceleaf violet |
Viola lanceolata |
4 |
| Langsdorf's lousewort |
Pedicularis langsdorffii |
7 |
| large hop clover |
Trifolium campestre |
2 |
| large leather-root |
Hoita macrostachya |
5 |
| largeflower bellwort |
Uvularia grandiflora |
2 |
| largeflower milkweed |
Asclepias connivens |
6 |
| largeleaf avens |
Geum macrophyllum |
3 |
| largeseed dodder |
Cuscuta indecora |
2 |
| larkspur |
Delphinium spp. |
2 |
| larkspurleaf monkshood |
Aconitum delphiniifolium |
13 |
| Latin American fleabane |
Erigeron karvinskianus |
5 |
| lava bur cucumber |
Sicyos anunu |
1 |
| lavaslope centaury |
Centaurium sebaeoides |
5 |
| lawn burweed |
Soliva sessilis |
2 |
| Leadville milkvetch |
Astragalus molybdenus |
1 |
| leafflower |
Phyllanthus spp. |
3 |
| leafy bladderwort |
Utricularia foliosa |
2 |
| leafy spurge |
Euphorbia esula |
53 |
| leafystem saxifrage |
Saxifraga foliolosa |
6 |
| leatherleaf goldback fern |
Pityrogramma austroamericana |
2 |
| Leavenworth's eryngo |
Eryngium leavenworthii |
2 |
| Lemmon's rockcress |
Arabis lemmonii |
7 |
| leopard plant |
Ligularia stenocephala |
1 |
| lesser celandine, fig buttercup |
Ficaria verna |
60 |
| lesser hawkbit |
Leontodon taraxacoides |
2 |
| lesser swinecress |
Coronopus didymus |
8 |
| lily |
Lilium spp. |
7 |
| limestone calamint |
Clinopodium arkansanum |
1 |
| limnophila |
Limnophila sessiliflora |
2 |
| Lindheimer's beeblossom |
Gaura lindheimeri |
4 |
| linearleaf snapdragon |
Misopates orontium |
1 |
| lionsear |
Leonotis nepetifolia |
3 |
| little brown jug |
Hexastylis arifolia |
3 |
| Little River Canyon onion |
Allium speculae |
1 |
| little spurflower |
Plectranthus parviflorus |
3 |
| little western bittercress |
Cardamine oligosperma |
1 |
| littleflower alumroot |
Heuchera parviflora |
11 |
| littleflower penstemon |
Penstemon procerus |
6 |
| littleleaf stenogyne |
Stenogyne microphylla |
16 |
| live-forever stonecrop |
Hylotelephium telephium |
1 |
| lizardstail |
Saururus cernuus |
5 |
| locoweed |
Oxypolis splendens |
5 |
| locoweed |
Oxytropis lambertii x sericea |
4 |
| lodgepole lupine |
Lupinus parviflorus |
2 |
| lonbract wakerobin |
Trillium underwoodii |
5 |
| London rocket |
Sisymbrium irio |
3 |
| longbract wild indigo |
Baptisia bracteata var. leucophaea |
1 |
| longpod stitchwort |
Minuartia macrocarpa |
4 |
| looseflower water-willow |
Justicia ovata var. lanceolata |
3 |
| loosestrife |
Lysimachia spp. |
1 |
| Louisiana wormwood |
Artemisia ludoviciana |
5 |
| loulu |
Coniogramme pilosa |
2 |
| love-lies-bleeding |
Amaranthus caudatus |
3 |
| low amaranth |
Amaranthus deflexus |
2 |
| low pinebarren milkwort |
Polygala ramosa |
2 |
| lupine |
Lupinus spp. |
5 |
| lyreleaf sage |
Salvia lyrata |
2 |
| ma'ohi'ohi |
Stenogyne rugosa |
5 |
| Madagascar periwinkle |
Catharanthus roseus |
1 |
| Madagascar ragwort |
Senecio madagascariensis |
13 |
| madeiravine |
Anredera cordifolia |
1 |
| maiden blue eyed mary |
Collinsia parviflora |
5 |
| maiden pink |
Dianthus deltoides |
3 |
| makou |
Peucedanum sandwicense |
2 |
| mallow bindweed |
Convolvulus althaeoides |
2 |
| Malta starthistle |
Centaurea melitensis |
8 |
| marestail |
Hippuris vulgaris |
5 |
| marigold |
Tagetes spp. |
2 |
| marijuana |
Cannabis sativa |
3 |
| maroonspot calicoflower |
Downingia concolor |
11 |
| marsh cinquefoil |
Comarum palustre |
14 |
| marsh dayflower |
Murdannia keisak |
1 |
| marsh felwort |
Lomatogonium rotatum |
11 |
| marsh fleabane |
Senecio congestus |
2 |
| marsh yellowcress |
Rorippa palustris |
5 |
| mat chaff-flower |
Alternanthera caracasana |
4 |
| mat lippia |
Phyla nodiflora |
3 |
| Maui beggarticks |
Bidens mauiensis |
1 |
| Mauritius hemp |
Furcraea foetida |
3 |
| Maximilian sunflower |
Helianthus maximiliani |
1 |
| mayapple |
Podophyllum peltatum |
11 |
| maypop passionflower |
Passiflora incarnata |
1 |
| meadow bistort |
Polygonum bistorta |
4 |
| meadow campion |
Silene flos-cuculi |
37 |
| meadow hawkweed |
Hieracium caespitosum |
5 |
| meadow knapweed |
Centaurea moncktonii |
5 |
| meadow lousewort |
Pedicularis crenulata |
9 |
| meadow salsify |
Tragopogon lamottei |
3 |
| Mediterranean rocket |
Sisymbrium erysimoides |
2 |
| Mediterranean sage |
Salvia aethiopis |
2 |
| Mediterranean saltwort |
Salsola vermiculata |
1 |
| Melancholy toad-flax |
Linaria tristis |
1 |
| Menzies' fiddleneck |
Amsinckia menziesii |
2 |
| merckia |
Wilhelmsia physodes |
11 |
| mesa paperwort |
Lepidium alyssoides |
2 |
| Mexican brassbuttons |
Cotula mexicana |
1 |
| Mexican fireweed |
Kochia scoparia |
43 |
| Mexican mosquitofern |
Azolla mexicana |
2 |
| Mexican pricklepoppy |
Argemone mexicana |
4 |
| Mexican tulip poppy |
Hunnemannia fumariifolia |
12 |
| Mexican whorled milkweed |
Asclepias fascicularis |
9 |
| mexicantea |
Dysphania ambrosioides |
5 |
| Michaux's milkweed |
Asclepias michauxii |
22 |
| milkweed |
Asclepias spp. |
3 |
| miner's lettuce |
Claytonia perfoliata |
1 |
| miniature lupine |
Lupinus bicolor |
2 |
| Minnesota trout lily |
Erythronium propullans |
1 |
| Missouri goldenrod |
Solidago missouriensis |
6 |
| Missouri lambsquarters |
Chenopodium album var. missouriense |
2 |
| Mistassini primrose |
Primula mistassinica |
1 |
| mohintli |
Justicia spicigera |
1 |
| monarda |
Monarda spp. |
2 |
| moneywort |
Lysimachia nummularia |
20 |
| monkeygrass |
Liriope muscari |
7 |
| monochoria |
Monochoria vaginalis |
2 |
| morningglory |
Ipomoea spp. |
1 |
| Moroccan toadflax |
Linaria maroccana |
4 |
| moss campion |
Silene acaulis var. subacaulescens |
3 |
| moss phlox |
Phlox subulata |
1 |
| moss vervain |
Glandularia pulchella |
2 |
| moth mullein |
Verbascum blattaria |
3 |
| motherwort |
Leonurus cardiaca |
1 |
| mountain dryas |
Dryas octopetala |
9 |
| mountain springparsley |
Cymopterus montanus |
5 |
| mountain stitchwort |
Minuartia biflora |
12 |
| mountain tansymustard |
Descurainia incana |
7 |
| mouse-ear chickweed |
Cerastium spp. |
12 |
| mouse-ear cress |
Arabidopsis thaliana |
1 |
| Mt. Albert goldenrod |
Solidago simplex |
11 |
| mudmat |
Glossostigma cleistanthum |
28 |
| mulberryweed |
Fatoua villosa |
4 |
| mule-ears |
Wyethia amplexicaulis |
6 |
| mullein nightshade |
Solanum donianum |
1 |
| musk fern |
Phymatosorus grossus |
2 |
| musk thistle |
Carduus nutans |
31 |
| nakedstem wallflower |
Parrya nudicaulis |
9 |
| narrow swordfern |
Nephrolepis cordifolia |
2 |
| narrowleaf arnica |
Arnica angustifolia |
1 |
| narrowleaf bittercress |
Cardamine impatiens |
91 |
| narrowleaf blueeyed-grass |
Sisyrinchium angustifolium |
2 |
| narrowleaf evening-primrose |
Oenothera fruticosa |
1 |
| narrowleaf Indian breadroot |
Pediomelum linearifolium |
1 |
| narrowleaf saw-wort |
Saussurea angustifolia |
4 |
| narrowleaf spring-beauty |
Claytonia virginica |
4 |
| native yellow purslane |
Portulaca lutea |
24 |
| nettleleaf goosefoot |
Chenopodium murale |
3 |
| New England aster |
Symphyotrichum novae-angliae |
5 |
| New York ironweed |
Vernonia noveboracensis |
6 |
| New Zealand flax |
Phormium tenax |
2 |
| New Zealand spinach |
Tetragonia tetragonioides |
8 |
| Newberry's hymenopappus |
Hymenopappus newberryi |
13 |
| nightblooming cactus |
Hylocereus undatus |
1 |
| nightflowering catchfly |
Silene noctiflora |
4 |
| nightshade |
Solanum spp. |
2 |
| nipplefruit |
Solanum mammosum |
3 |
| nodding onion |
Allium cernuum |
1 |
| nodding saxifrage |
Saxifraga cernua |
9 |
| nodding trillium |
Trillium cernuum |
4 |
| Nootka lupine |
Lupinus nootkatensis |
1 |
| Norfolk-island lagunaea |
Lagunaea patersonia |
1 |
| North African knapweed |
Centaurea diluta |
1 |
| northern bedstraw |
Galium boreale |
10 |
| northern dandelion |
Taraxacum phymatocarpum |
15 |
| Northern grass of Parnassus |
Parnassia palustris |
10 |
| northern Jacob's-ladder |
Polemonium boreale |
9 |
| northern tansymustard |
Descurainia sophioides |
9 |
| northern twayblade |
Listera borealis |
4 |
| notched cowpea |
Vigna marina |
4 |
| notchleaf clover |
Trifolium bifidum |
3 |
| Nuttall povertyweed |
Monolepis nuttalliana |
2 |
| Nuttall's sunflower |
Helianthus nuttallii |
5 |
| Nuttall's violet |
Viola nuttallii |
11 |
| obedient-plant |
Physostegia virginiana |
2 |
| oblongleaf bluebells |
Mertensia oblongifolia |
5 |
| oblongleaf snakeherb |
Dyschoriste oblongifolia |
8 |
| obscure morning-glory |
Ipomoea obscura |
5 |
| old man's whiskers |
Geum triflorum |
11 |
| Old World forkedfern |
Dicranopteris linearis |
8 |
| oldfield cinquefoil |
Potentilla simplex |
4 |
| onerow yellowcress |
Nasturtium microphyllum |
30 |
| oneside penstemon |
Penstemon unilateralis |
1 |
| onestem fleabane |
Erigeron simplex |
12 |
| onions |
Allium spp. |
1 |
| onionweed |
Asphodelus fistulosus |
2 |
| Ontario blazing star |
Liatris cylindracea |
2 |
| Ontario goldenrod |
Solidago simplex ssp. randii var. ontarioensis |
1 |
| oppositeleaf Russian thistle |
Salsola soda |
2 |
| orange agoseris |
Agoseris aurantiaca |
7 |
| orange coneflower |
Rudbeckia fulgida |
1 |
| orange hawkweed |
Hieracium aurantiacum |
12 |
| orange sneezeweed |
Hymenoxys hoopesii |
11 |
| orange stonecrop |
Sedum kamtschaticum |
1 |
| orbicular whitetop |
Lepidium chalepense |
5 |
| orchid |
Chloraea gavilu |
1 |
| Oregon fleabane |
Erigeron speciosus |
8 |
| Oregon saxifrage |
Saxifraga oregana |
10 |
| Oregon timwort |
Cicendia quadrangularis |
5 |
| Oregon woollyheads |
Psilocarphus oregonus |
2 |
| oriental mustard |
Sisymbrium orientale |
1 |
| oriental poppy |
Papaver orientale |
2 |
| ornamental jewelweed |
Impatiens glandulifera |
169 |
| oval-leaf clustervine |
Jacquemontia ovalifolia ssp. sandwicensis |
14 |
| oxeye |
Heliopsis helianthoides |
3 |
| oxeye daisy |
Leucanthemum vulgare |
23 |
| oxlip |
Primula elatior |
1 |
| oysterleaf |
Mertensia maritima |
9 |
| Pacific mosquitofern |
Azolla filiculoides |
4 |
| Pacific poison-oak |
Toxicodendron diversilobum |
5 |
| paha |
Sicyos pachycarpus |
12 |
| painted trillium |
Trillium undulatum |
2 |
| pakaha |
Lepechinia hastata |
2 |
| palapalai |
Microlepia strigosa |
6 |
| pale agoseris |
Agoseris glauca |
9 |
| pale corydalis |
Capnoides sempervirens |
1 |
| pale echinacea |
Echinacea pallida |
1 |
| pale flax |
Linum bienne |
1 |
| paleseed plantain |
Plantago virginica |
3 |
| Pallas' buttercup |
Ranunculus pallasii |
2 |
| palm fern |
Blechnum appendiculatum |
1 |
| Palmer amaranth |
Amaranthus palmeri |
5 |
| panicle willowherb |
Epilobium brachycarpum |
1 |
| panicledleaf ticktrefoil |
Desmodium paniculatum |
2 |
| pansy |
Viola tricolor |
1 |
| paperwhite narcissus |
Narcissus papyraceus |
4 |
| pappose tarweed |
Centromadia parryi ssp. rudis |
3 |
| parrot feather milfoil |
Myriophyllum aquaticum |
31 |
| parrot pitcherplant |
Sarracenia psittacina |
2 |
| Parry's agave |
Agave parryi |
1 |
| Parry's bellflower |
Campanula parryi |
5 |
| Parry's gentian |
Gentiana parryi |
1 |
| Parry's goldenrod |
Oreochrysum parryi |
9 |
| Parry's lousewort |
Pedicularis parryi |
4 |
| Parry's primrose |
Primula parryi |
2 |
| partridgepea |
Chamaecrista fasciculata |
1 |
| Patterson's milkvetch |
Astragalus pattersonii |
2 |
| peanut |
Arachis hypogaea |
2 |
| pearly everlasting |
Anaphalis margaritacea |
4 |
| pearly pussytoes |
Antennaria anaphaloides |
6 |
| pelotazo |
Abutilon incanum |
7 |
| Pennsylvania smartweed |
Polygonum pensylvanicum |
3 |
| peony |
Paeonia officinalis |
1 |
| peony |
Paeonia spp. |
5 |
| peregrine saltbush |
Atriplex suberecta |
3 |
| peregrine thistle |
Cirsium cymosum |
1 |
| perennial cornflower |
Centaurea montana |
2 |
| perennial lupine |
Lupinus perennis |
5 |
| perennial pepperweed |
Lepidium latifolium |
102 |
| perennial sowthistle |
Sonchus arvensis |
10 |
| Perez's sea lavender |
Limonium perezii |
1 |
| perilla mint |
Perilla frutescens |
1 |
| Persian speedwell |
Veronica persica |
1 |
| Peruvian zinnia |
Zinnia peruviana |
4 |
| pestilence wort |
Petasites hybridus |
3 |
| petunia |
Petunia spp. |
1 |
| Philippine ground orchid |
Spathoglottis plicata |
1 |
| phlox |
Phlox spp. |
2 |
| pickerelweed |
Pontederia cordata |
12 |
| piedmont barren strawberry |
Waldsteinia lobata |
5 |
| pigweed |
Amaranthus spp. |
2 |
| pimpernel willowherb |
Epilobium anagallidifolium |
9 |
| pine echium |
Echium pininana |
1 |
| pineapple |
Ananas comosus |
2 |
| pineapple-weed |
Matricaria discoidea |
4 |
| pineland milkweed |
Asclepias obovata |
2 |
| pineneedle beardtongue |
Penstemon pinifolius |
5 |
| pingue rubberweed |
Hymenoxys richardsonii |
11 |
| pinguin |
Bromelia pinguin |
2 |
| pink bogbutton |
Sclerolepis uniflora |
4 |
| pink lady's-slipper |
Cypripedium acaule |
4 |
| pink purslane |
Portulaca pilosa |
15 |
| pink turtlehead |
Chelone lyonii |
1 |
| pinklady |
Dissotis rotundifolia |
1 |
| pitted morningglory |
Ipomoea lacunosa |
4 |
| plains coreopsis |
Coreopsis tinctoria |
1 |
| plantainleaf pussytoes |
Antennaria plantaginifolia |
2 |
| poison-hemlock |
Conium maculatum |
18 |
| poisonbulb |
Crinum asiaticum |
3 |
| pokeweed |
Phytolacca spp. |
1 |
| Porter's licorice-root |
Ligusticum porteri |
8 |
| pot marigold |
Calendula officinalis |
4 |
| poverty sumpweed |
Iva axillaris |
3 |
| Powell amaranth |
Amaranthus powellii |
7 |
| prairie blue-eyed grass |
Sisyrinchium campestre |
2 |
| prairie bluebells |
Mertensia lanceolata |
8 |
| prickly lettuce |
Lactuca serriola |
32 |
| prickly sida |
Sida spinosa |
10 |
| Prickly-leaved massonia |
Massonia muricata |
1 |
| pricklypoppy |
Argemone spp. |
2 |
| primrose |
Primula sibirica |
13 |
| Prince-of-Wales feather |
Amaranthus hypochondriacus |
2 |
| prostrate hutchinsia |
Hornungia procumbens |
3 |
| prostrate knotweed |
Polygonum aviculare |
4 |
| prostrate pigweed |
Amaranthus blitoides |
3 |
| prostrate spurge |
Chamaesyce humistrata |
2 |
| prostrate vervain |
Verbena bracteata |
3 |
| puakauhi |
Canavalia hawaiiensis |
1 |
| puaokama |
Sicyos maximowiczii |
1 |
| purple avens |
Geum rivale |
6 |
| purple bushbean |
Macroptilium atropurpureum |
6 |
| purple coneflower |
Echinacea purpurea |
6 |
| purple cudweed |
Gamochaeta purpurea |
1 |
| purple deadnettle |
Lamium purpureum |
7 |
| purple fleabane |
Erigeron purpuratus |
10 |
| purple locoweed |
Oxypolis lambertii |
4 |
| purple loosestrife |
Lythrum salicaria |
147 |
| purple nightshade |
Solanum xanti |
1 |
| purple pitcherplant |
Sarracenia purpurea |
2 |
| purple sanicle |
Sanicula bipinnatifida |
3 |
| purple starthistle |
Centaurea calcitrapa |
5 |
| purslane speedwell |
Veronica peregrina |
10 |
| pygmy goldenweed |
Tonestus pygmaeus |
9 |
| pygmy pussytoes |
Antennaria monocephala |
1 |
| Queen Anne's lace, wild carrot |
Daucus carota |
8 |
| queen's-delight |
Stillingia sylvatica |
1 |
| rabbitfoot clover |
Trifolium arvense |
5 |
| radish |
Raphanus sativus |
3 |
| ragweed parthenium |
Parthenium hysterophorus |
5 |
| ramp |
Allium tricoccum |
6 |
| ramsons |
Allium ursinum |
3 |
| Raup's Indian paintbrush |
Castilleja raupii |
2 |
| rayless sunflower |
Helianthus radula |
5 |
| red amaranth |
Amaranthus cruentus |
1 |
| red columbine |
Aquilegia canadensis |
1 |
| red ginger |
Alpinia purpurata |
4 |
| red morningglory |
Ipomoea coccinea |
2 |
| red orach |
Atriplex rosea |
3 |
| red sandspurry |
Spergularia rubra |
2 |
| red sorrel |
Rumex acetosella |
55 |
| red trillium |
Trillium erectum |
3 |
| red turtlehead |
Chelone obliqua |
1 |
| red valerian |
Centranthus ruber |
4 |
| redivy |
Hemigraphis alternata |
1 |
| redpurple ragwort |
Senecio elegans |
2 |
| redrattle |
Pedicularis flammea |
10 |
| redroot pigweed |
Amaranthus retroflexus |
16 |
| redstem |
Ammannia coccinea |
3 |
| redstem filaree |
Erodium cicutarium |
1 |
| redstem stork's bill |
Erodium cicutarium ssp. cicutarium |
1 |
| resurrection fern |
Pleopeltis polypodioides ssp. michauxiana |
3 |
| Richardson's bittercress |
Cardamine digitata |
8 |
| Richardson's geranium |
Geranium richardsonii |
4 |
| Riddell's spikemoss |
Selaginella arenicola ssp. riddellii |
1 |
| Robbins' milkvetch |
Astragalus robbinsii |
1 |
| robust horsenettle |
Solanum dimidiatum |
1 |
| rock fumewort |
Pseudofumaria lutea |
1 |
| rocket |
Hesperis spp. |
3 |
| Rocky Mountain beeplant |
Cleome serrulata |
10 |
| Rocky Mountain cinquefoil |
Potentilla rubricaulis |
6 |
| Rocky Mountain fringed gentian |
Gentianopsis thermalis |
1 |
| Rocky Mountain goldenrod |
Solidago multiradiata |
29 |
| Rocky Mountain iris |
Iris missouriensis |
2 |
| Rocky Mountain penstemon |
Penstemon strictus |
16 |
| Rocky Mountain snowlover |
Chionophila jamesii |
7 |
| Rocky Mountain springparsley |
Cymopterus planosus |
2 |
| Roemer's mimosa |
Mimosa roemeriana |
1 |
| romerillo |
Bidens alba |
1 |
| romerillo |
Bidens alba var. radiata |
5 |
| rooted poppy |
Papaver radicatum |
23 |
| rose clover |
Trifolium hirtum |
9 |
| rose rush |
Lygodesmia aphylla |
5 |
| rosering gaillardia |
Gaillardia pulchella |
5 |
| roseroot stonecrop |
Rhodiola rosea |
2 |
| Ross' avens |
Geum rossii |
26 |
| Ross' sandwort |
Minuartia rossii |
2 |
| rosy pussytoes |
Antennaria rosea |
2 |
| rough bedstraw |
Galium asprellum |
1 |
| rough cinquefoil |
Potentilla norvegica |
8 |
| rough maidenhair fern |
Adiantum hispidulum |
3 |
| rough peavine |
Lathyrus hirsutus |
3 |
| roughseed clammyweed |
Polanisia dodecandra |
1 |
| round headed rampion |
Phyteuma obiculare |
1 |
| roundleaf sundew |
Drosera rotundifolia |
2 |
| rue anemone |
Thalictrum thalictroides |
6 |
| running fleabane |
Erigeron colomexicanus |
1 |
| rush skeletonweed |
Chondrilla juncea |
11 |
| Russian knapweed |
Rhaponticum repens |
10 |
| Russian sage |
Perovskia atriplicifolia |
1 |
| Russian thistle |
Salsola kali ssp. austroafricana |
1 |
| Russian-thistle |
Salsola tragus |
21 |
| Rydberg's penstemon |
Penstemon rydbergii |
21 |
| Sacramento mesamint |
Pogogyne ziziphoroides |
8 |
| safflower |
Carthamus tinctorius |
3 |
| sage |
Salvia officinalis |
1 |
| sagebrush violet |
Viola vallicola |
10 |
| Sakhalin knotweed |
Fallopia sachalinensis |
39 |
| Salep orchid |
Dactylorhiza incarnata ssp. incarnata |
1 |
| saltbush |
Atriplex spp. |
5 |
| saltmarsh dodder |
Cuscuta salina |
1 |
| saltmarsh sandspurry |
Spergularia salina |
1 |
| saltmarsh starwort |
Stellaria humifusa |
9 |
| salvation jane |
Echium plantagineum |
4 |
| Sampson's snakeroot |
Orbexilum pedunculatum |
4 |
| sanddune wallflower |
Erysimum capitatum |
17 |
| Sandwich dodder |
Cuscuta sandwichiana |
3 |
| Santa Cruz tarplant |
Holocarpha macradenia |
8 |
| saxifrage |
Saxifraga spp. |
5 |
| scaly blazing star |
Liatris squarrosa |
4 |
| scarlet beebalm |
Monarda didyma |
1 |
| scarlet gilia |
Ipomopsis aggregata |
4 |
| scarlet Indian paintbrush |
Castilleja coccinea |
2 |
| scarlet pimpernel |
Lysimachia arvensis |
2 |
| scarlet spiderling |
Boerhavia coccinea |
3 |
| Schweinitz's sunflower |
Helianthus schweinitzii |
1 |
| Scotch thistle |
Onopordum acanthium |
27 |
| scrambling fern |
Diplopterygium pinnatum |
2 |
| sea fig |
Carpobrotus chilensis |
2 |
| sea hibiscus |
Hibiscus tiliaceus |
9 |
| sea muilla |
Muilla maritima |
2 |
| seacliff starviolet |
Hedyotis littoralis |
6 |
| seacoast angelica |
Angelica lucida |
12 |
| seaside heliotrope |
Heliotropium curassavicum |
17 |
| seaside sandplant |
Honckenya peploides |
9 |
| seep monkeyflower |
Mimulus guttatus |
13 |
| sensitiveplant |
Mimosa pudica |
1 |
| sericea lespedeza |
Lespedeza cuneata |
15 |
| sessile joyweed |
Alternanthera sessilis |
1 |
| seven sisters swamplily |
Crinum americanum |
1 |
| shaggy fleabane |
Erigeron pumilus |
2 |
| shakeshake |
Crotalaria incana |
6 |
| sharp-lobed hepatica |
Hepatica nobilis var. acuta |
4 |
| sharpleaf valerian |
Valeriana acutiloba |
15 |
| Shasta daisy |
Leucanthemum x superbum |
2 |
| shellflower |
Moluccella laevis |
2 |
| shellplant |
Alpinia zerumbet |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
24 |
| shining geranium |
Geranium lucidum |
2 |
| shoeblackplant |
Hibiscus rosa-sinensis |
1 |
| shoreline seapurslane |
Sesuvium portulacastrum |
75 |
| shortfruit stork's bill |
Erodium brachycarpum |
1 |
| shortleaf rose gentian |
Sabatia brevifolia |
3 |
| shortpod mustard |
Hirschfeldia incana |
4 |
| shortray fleabane |
Erigeron lonchophyllus |
4 |
| showy dewflower |
Drosanthemum floribundum |
2 |
| showy draba |
Draba spectabilis |
9 |
| showy evening-primrose |
Oenothera speciosa |
9 |
| showy milkweed |
Asclepias speciosa |
6 |
| showy orchid |
Galearis spectabilis |
1 |
| showy prairie gentian |
Eustoma exaltatum ssp. russellianum |
2 |
| showy stonecrop |
Hylotelephium spectabile |
1 |
| shrimpplant |
Justicia brandegeeana |
1 |
| shrubby daisybush |
Osteospermum fruticosum |
1 |
| shrubby lespedeza |
Lespedeza bicolor |
3 |
| sibara |
Sibara virginica |
2 |
| Siberian iris |
Iris sibirica |
5 |
| Siberian squill |
Scilla siberica |
1 |
| sicklepod |
Senna obtusifolia |
3 |
| sickletop lousewort |
Pedicularis racemosa |
5 |
| sidebeak pencilflower |
Stylosanthes biflora |
7 |
| Sierra tansymustard |
Descurainia californica |
2 |
| silky lupine |
Lupinus sericeus |
2 |
| silver lupine |
Lupinus argenteus |
1 |
| silver sage |
Salvia argentea |
1 |
| silverleaf nightshade |
Solanum elaeagnifolium |
4 |
| silverweed cinquefoil |
Argentina anserina |
16 |
| single delight |
Moneses uniflora |
1 |
| sisal |
Agave sisalana |
4 |
| slender amaranth |
Amaranthus viridis |
2 |
| slender aster |
Symphyotrichum divaricatum |
1 |
| slender cinquefoil |
Potentilla gracilis |
13 |
| slender draba |
Draba albertina |
6 |
| slender false buttonweed |
Spermacoce tenuior |
1 |
| slender hawkweed |
Hieracium gracile |
7 |
| slender snakecotton |
Froelichia gracilis |
27 |
| slender woollyheads |
Psilocarphus tenellus |
1 |
| slenderflower thistle |
Carduus tenuiflorus |
1 |
| slenderleaf iceplant |
Mesembryanthemum nodiflorum |
1 |
| slendertube skyrocket |
Ipomopsis tenuituba |
2 |
| small ballmoss |
Tillandsia recurvata |
1 |
| small bonny bellflower |
Campanula divaricata |
1 |
| small broomrape |
Orobanche minor |
7 |
| small butterwort |
Pinguicula pumila |
17 |
| small flower touch-me-not |
Impatiens parviflora |
5 |
| small Venus' looking-glass |
Triodanis biflora |
3 |
| small white violet |
Viola macloskeyi |
9 |
| small wirelettuce |
Stephanomeria exigua |
6 |
| small-leaf pussytoes |
Antennaria parvifolia |
3 |
| smallflower galinsoga |
Galinsoga parviflora |
4 |
| smallflower miterwort |
Mitella stauropetala |
8 |
| smallseed alfalfa dodder |
Cuscuta approximata |
1 |
| smallseed falseflax |
Camelina microcarpa |
4 |
| smooth bedstraw |
Galium mollugo |
23 |
| smooth cat's ear |
Hypochaeris glabra |
9 |
| smooth goldfields |
Lasthenia glaberrima |
4 |
| smooth groundcherry |
Physalis longifolia var. subglabrata |
2 |
| smooth hawksbeard |
Crepis capillaris |
5 |
| smooth horsetail |
Equisetum laevigatum |
1 |
| smooth oxeye |
Heliopsis helianthoides var. scabra |
1 |
| smooth pigweed |
Amaranthus hybridus |
11 |
| smooth pricklypoppy |
Argemone glauca |
19 |
| smooth Solomon's seal |
Polygonatum biflorum |
2 |
| smooth tidytips |
Layia chrysanthemoides |
10 |
| snakemouth orchid |
Pogonia ophioglossoides |
1 |
| snapdragon |
Antirrhinum majus |
2 |
| snow cinquefoil |
Potentilla nivea |
6 |
| snow-on-the-mountain |
Euphorbia marginata |
2 |
| snowbed draba |
Draba crassifolia |
7 |
| snowbell |
Soldanella hungarica |
1 |
| snowdrop |
Galanthus nivalis |
4 |
| snowy thistle |
Cirsium occidentale var. candidissimum |
1 |
| southern brassbuttons |
Cotula australis |
3 |
| southern globethistle |
Echinops ritro |
1 |
| southern naiad |
Najas guadalupensis |
4 |
| southern sida |
Sida acuta |
1 |
| southern twayblade |
Listera australis |
4 |
| southwestern carrot |
Daucus pusillus |
2 |
| speedwell |
Veronica spp. |
4 |
| spider lily |
Lycoris chinensis |
2 |
| spiderlily |
Hymenocallis spp. |
3 |
| spiderwort |
Tradescantia spp. |
1 |
| spindleroot |
Ludwigia hirtella |
4 |
| spiny amaranth |
Amaranthus spinosus |
4 |
| spiny cocklebur |
Xanthium spinosum |
1 |
| spiny plumeless thistle |
Carduus acanthoides |
1 |
| spiny sowthistle |
Sonchus asper |
8 |
| splitleaf Indian paintbrush |
Castilleja rhexiifolia |
14 |
| spoonleaf sundew |
Drosera intermedia |
3 |
| spoonleaf yellow loosestrife |
Lysimachia mauritiana |
1 |
| spotted beebalm |
Monarda punctata ssp. punctata |
1 |
| spotted beebalm |
Monarda punctata ssp. punctata var. punctata |
1 |
| spotted bellflower |
Campanula punctata |
1 |
| spotted deadnettle |
Lamium maculatum |
1 |
| spotted knapweed |
Centaurea stoebe |
116 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
17 |
| spotted orchid |
Dactylorhiza incarnata |
1 |
| spotted spurge |
Euphorbia maculata |
7 |
| spotted wakerobin |
Trillium maculatum |
2 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
2 |
| spotted wintergreen |
Chimaphila maculata |
1 |
| spreading dayflower |
Commelina diffusa |
2 |
| spreading dogbane |
Apocynum androsaemifolium |
14 |
| springbeauty |
Claytonia spp. |
11 |
| spurge |
Euphorbia spp. |
1 |
| squarrose knapweed |
Centaurea virgata |
2 |
| squirrel's tail |
Justicia betonica |
1 |
| St. Johnswort |
Hypericum spp. |
2 |
| stalked popcornflower |
Plagiobothrys stipitatus |
11 |
| star chickweed |
Stellaria pubera |
2 |
| star-of-Bethlehem |
Ornithogalum umbellatum |
49 |
| sticky chickweed |
Cerastium glomeratum |
2 |
| sticky gilia |
Gilia pinnatifida |
4 |
| sticky sandspurry |
Spergularia macrotheca |
1 |
| sticky tofieldia |
Triantha glutinosa |
2 |
| stiff greenthread |
Thelesperma filifolium |
1 |
| stiffstem saxifrage |
Saxifraga hieraciifolia |
6 |
| stinging nettle |
Urtica dioica |
1 |
| stinking chamomile |
Anthemis cotula |
8 |
| stinkwort |
Dittrichia graveolens |
4 |
| stonecrop |
Hylotelephium spp. |
1 |
| stonecrop |
Sedum spp. |
3 |
| strawberry |
Fragaria spp. |
2 |
| strawberryleaf raspberry |
Rubus pedatus |
1 |
| sudetic lousewort |
Pedicularis sudetica |
19 |
| Suisun Marsh aster |
Symphyotrichum lentum |
7 |
| sulfur cinquefoil |
Potentilla recta |
13 |
| sulphur buttercup |
Ranunculus sulphureus |
13 |
| sulphur Indian paintbrush |
Castilleja sulphurea |
5 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| sunflower |
Helianthus spp. |
4 |
| surefoot buttercup |
Ranunculus pedatifidus |
2 |
| swamp dodder |
Cuscuta gronovii |
2 |
| swamp sunflower |
Helianthus angustifolius |
2 |
| sweet alyssum |
Lobularia maritima |
4 |
| sweet wakerobin |
Trillium vaseyi |
3 |
| sweet white violet |
Viola blanda |
1 |
| sweet-scented Tritonia |
Tritonia squalida |
1 |
| sweetfern |
Comptonia peregrina |
2 |
| sweetflower rockjasmine |
Androsace chamaejasme |
13 |
| sweetpotato |
Ipomoea batatas |
3 |
| sweetscented marigold |
Tagetes lucida |
1 |
| swordfern |
Nephrolepis Spp. |
5 |
| Syrian beancaper |
Zygophyllum fabago |
7 |
| taique |
Desfontainia spinosa |
1 |
| tall buttercup |
Ranunculus acris |
7 |
| tall fleabane |
Conyza floribunda |
1 |
| tall fringed bluebells |
Mertensia ciliata |
11 |
| tall hedge mustard |
Sisymbrium loeselii |
5 |
| tall ironweed |
Vernonia angustifolia |
2 |
| tall ironweed |
Vernonia gigantea |
2 |
| tall Jacob's-ladder |
Polemonium acutiflorum |
9 |
| tall lettuce |
Lactuca canadensis |
6 |
| tall morningglory |
Ipomoea purpurea |
11 |
| tall ragwort |
Senecio serra |
6 |
| tall vervain |
Verbena bonariensis |
5 |
| tall waterhemp |
Amaranthus tuberculatus |
11 |
| tansy ragwort |
Senecio jacobaea |
107 |
| tapertip spleenwort |
Asplenium acuminatum |
1 |
| tarovine |
Monstera deliciosa |
1 |
| tarweed fiddleneck |
Amsinckia lycopsoides |
1 |
| tasselflower brickellbush |
Brickellia grandiflora |
1 |
| tawny daylily |
Hemerocallis fulva |
1 |
| telegraphplant |
Heterotheca grandiflora |
7 |
| Texas bindweed |
Convolvulus equitans |
1 |
| Texas bullnettle |
Cnidoscolus texanus |
3 |
| Texas filaree |
Erodium texanum |
2 |
| Texas ironweed |
Vernonia texana |
3 |
| Texas lupine |
Lupinus texensis |
5 |
| Texas prairie parsley |
Polytaenia texana |
1 |
| Texas skeletonplant |
Lygodesmia texana |
1 |
| Texas star |
Sabatia campestris |
7 |
| Texas thistle |
Cirsium texanum |
1 |
| Texas yellowstar |
Lindheimera texana |
2 |
| thimble clover |
Trifolium microdon |
5 |
| thistle |
Cirsium spp. |
15 |
| threepetal bedstraw |
Galium trifidum |
2 |
| threeray tarweed |
Hemizonia lobbii |
1 |
| thrift seapink |
Armeria maritima |
9 |
| Thunberg lespedeza |
Lespedeza thunbergii |
1 |
| Thunberg's geranium |
Geranium thunbergii |
64 |
| thymeleaf bluet |
Houstonia serpyllifolia |
1 |
| thymeleaf saxifrage |
Saxifraga serpyllifolia |
9 |
| thymeleaf speedwell |
Veronica serpyllifolia |
13 |
| ticktrefoils |
Desmodium spp. |
3 |
| tiger beardtongue |
Penstemon mensarum |
13 |
| timber milkvetch |
Astragalus miser |
1 |
| toadflax |
Linaria spp. |
1 |
| tobacco |
Nicotiana spp. |
2 |
| tobacco root |
Valeriana edulis |
5 |
| tomcat clover |
Trifolium willdenovii |
12 |
| tongue pepperweed |
Lepidium nitidum |
1 |
| tonguefern |
Elaphoglossum paleaceum |
1 |
| toothed calicoflower |
Downingia cuspidata |
14 |
| toothpick ammi |
Ammi visnaga |
3 |
| tower-mustard |
Arabis glabra |
6 |
| trailing krameria |
Krameria lanceolata |
3 |
| Trans-Pecos cliffbrake |
Pellaea ternifolia |
1 |
| Transvaal daisy |
Gerbera spp. |
1 |
| triangle orach |
Atriplex prostrata |
2 |
| triangleleaf lipfern |
Doryopteris decipiens |
3 |
| trillium |
Trillium spp. |
1 |
| tropic ageratum |
Ageratum conyzoides |
1 |
| tropic croton |
Croton glandulosus var. septentrionalis |
1 |
| tropical wild petunia |
Ruellia brevifolia |
1 |
| true forget-me-not |
Myosotis scorpioides |
38 |
| trumpetweed |
Eupatorium fistulosum |
1 |
| tufted evening-primrose |
Oenothera cespitosa |
1 |
| tulip |
Tulipa spp. |
24 |
| tumble mustard |
Sisymbrium altissimum |
13 |
| tumble pigweed |
Amaranthus albus |
1 |
| turkey corn |
Dicentra eximia |
1 |
| Turkey mullein |
Croton setiger |
7 |
| turkeyberry |
Solanum torvum |
13 |
| tussock bellflower |
Campanula carpatica |
1 |
| twinflower |
Linnaea borealis |
2 |
| twinleaf bedstraw |
Galium bifolium |
4 |
| twistleaf yucca |
Yucca pallida |
2 |
| two-row stonecrop |
Sedum spurium |
1 |
| twoleaf watermilfoil |
Myriophyllum heterophyllum |
25 |
| umber pussytoes |
Antennaria umbrinella |
1 |
| upright prairie coneflower |
Ratibida columnifera |
3 |
| varileaf cinquefoil |
Potentilla diversifolia |
7 |
| veiny pepperweed |
Lepidium oblongum var. oblongum |
1 |
| velvetleaf |
Abutilon theophrasti |
23 |
| Venice mallow |
Hibiscus trionum |
2 |
| Venus' chariot |
Aconitum napellus |
1 |
| Venus' pride |
Houstonia purpurea |
3 |
| venus-comb |
Scandix pecten-veneris |
2 |
| verbena |
Verbena speciosa |
1 |
| villous waterclover |
Marsilea villosa |
4 |
| violet |
Viola spp. |
2 |
| violet woodsorrel |
Oxalis violacea |
4 |
| virgate tarweed |
Holocarpha virgata |
2 |
| Virginia pepperweed |
Lepidium virginicum |
8 |
| Virginia spiderwort |
Tradescantia virginiana |
1 |
| viscid locoweed |
Oxypolis borealis viscida |
5 |
| wahini noho mauna |
Adenophorus tamariscinus |
2 |
| waimakanui |
Pteris excelsa |
1 |
| wakerobin |
Trillium erectum var. erectum |
2 |
| wall lettuce |
Mycelis muralis |
67 |
| wallflower |
Erysimum spp. |
1 |
| Warty St. John's wort |
Hypericum balearicum |
1 |
| water cowbane |
Oxypolis filiformis |
2 |
| water mudwort |
Limosella aquatica |
8 |
| water pennywort |
Hydrocotyle umbellata |
9 |
| water pygmyweed |
Crassula aquatica |
6 |
| water speedwell |
Veronica anagallis-aquatica |
5 |
| watercress |
Nasturtium officinale |
6 |
| watercresses and yellowcresses |
Nasturtium spp. |
25 |
| waterlettuce |
Pistia stratiotes |
52 |
| waterparsnip |
Sium suave |
9 |
| waterpod |
Hydrolea quadrivalvis |
12 |
| watershield |
Brasenia schreberi |
11 |
| waterthread pondweed |
Potamogeton diversifolius |
10 |
| wavyleaf sea lavender |
Limonium sinuatum |
3 |
| wavyleaf thistle |
Cirsium undulatum |
5 |
| weak saxifrage |
Saxifraga rivularis |
13 |
| weaselsnout |
Lagotis glauca |
2 |
| weeping fern |
Lepisorus thunbergianus |
2 |
| Welsh-poppy |
Meconopsis cambrica |
1 |
| West Indian beggarticks |
Bidens cynapiifolia |
1 |
| West Indian nightshade |
Solanum ptycanthum |
14 |
| western arctic shootingstar |
Dodecatheon frigidum |
8 |
| western aster |
Symphyotrichum ascendens |
3 |
| western blue-eyed grass |
Sisyrinchium bellum |
1 |
| western Indian paintbrush |
Castilleja occidentalis |
11 |
| western marsh cudweed |
Gnaphalium palustre |
3 |
| western ragweed |
Ambrosia psilostachya |
2 |
| western salsify |
Tragopogon dubius |
6 |
| western stickseed |
Hackelia floribunda |
5 |
| western sticktight |
Lappula occidentalis |
7 |
| western sweetroot |
Osmorhiza occidentalis |
6 |
| western thistle |
Cirsium occidentale |
2 |
| western valerian |
Valeriana occidentalis |
5 |
| western waterhemlock |
Cicuta douglasii |
11 |
| western whorled milkweed |
Asclepias subverticillata |
7 |
| whiplash saxifrage |
Saxifraga flagellaris |
17 |
| Whipple's penstemon |
Penstemon whippleanus |
16 |
| whisk fern |
Psilotum nudum |
4 |
| white brodiaea |
Triteleia hyacinthina |
2 |
| white bryony |
Bryonia alba |
5 |
| white cinquefoil |
Potentilla arguta |
9 |
| white clintonia |
Clintonia umbellulata |
1 |
| white clover |
Trifolium repens |
8 |
| white colicroot |
Aletris farinosa |
2 |
| white garland-lily |
Hedychium coronarium |
3 |
| white hawkweed |
Hieracium albiflorum |
5 |
| white horehound |
Marrubium vulgare |
1 |
| white locoweed |
Oxytropis sericea |
3 |
| white marsh marigold |
Caltha leptosepala ssp. leptosepala var. leptosepala |
1 |
| White Mountain saxifrage |
Saxifraga paniculata |
2 |
| white mountain-avens |
Dryas integrifolia |
12 |
| white mustard |
Sinapis alba |
3 |
| white snakeroot |
Ageratina altissima |
3 |
| white trillium |
Trillium grandiflorum |
6 |
| white trout lily |
Erythronium albidum |
4 |
| white turtlehead |
Chelone glabra |
5 |
| white violet |
Viola renifolia |
9 |
| whiteflower leafcup |
Polymnia canadensis |
3 |
| whitemouth dayflower |
Commelina erecta |
2 |
| whitetip clover |
Trifolium variegatum |
6 |
| whitish gentian |
Gentiana algida |
3 |
| whorled coreopsis |
Coreopsis verticillata |
1 |
| whorled pennywort |
Hydrocotyle verticillata |
1 |
| whorled sage |
Salvia verticillata |
1 |
| wild bergamot |
Monarda fistulosa |
5 |
| wild buckwheat |
Fallopia convolvulus |
3 |
| wild celery |
Cyclospermum leptophyllum |
4 |
| wild chervil |
Anthriscus sylvestris |
100 |
| wild comfrey |
Cynoglossum virginianum |
5 |
| wild cucumber |
Echinocystis lobata |
14 |
| wild four-o'clock |
Mirabilis nyctaginea |
1 |
| wild garlic |
Allium vineale |
17 |
| wild geranium |
Geranium maculatum |
19 |
| wild marjoram |
Origanum vulgare |
1 |
| wild mustard |
Sinapis arvensis |
1 |
| wild onion |
Allium canadense |
3 |
| wild parsnip |
Pastinaca sativa |
45 |
| wild radish |
Raphanus raphanistrum |
5 |
| wild safflower |
Carthamus oxyacanthus |
1 |
| wild sage |
Salvia sylvestris |
1 |
| wild sarsaparilla |
Aralia nudicaulis |
1 |
| wild strawberry |
Fragaria virginiana |
4 |
| wild yam |
Dioscorea villosa |
2 |
| willowleaf lettuce |
Lactuca saligna |
3 |
| winged encyclia |
Encyclia alata |
1 |
| winged water-starwort |
Callitriche marginata |
4 |
| winged waterprimrose |
Ludwigia decurrens |
3 |
| winged yam |
Dioscorea alata |
6 |
| wintergreen |
Gaultheria procumbens |
2 |
| witchweed |
Striga asiatica |
2 |
| witchweed |
Striga aspera |
1 |
| Wolf's saltweed |
Atriplex wolfii |
1 |
| wood anemone |
Anemone quinquefolia |
2 |
| wood spurge |
Euphorbia amygdaloides |
1 |
| woodland bittercress |
Cardamine flexuosa |
3 |
| woodland groundsel |
Senecio sylvaticus |
6 |
| woodland pinedrops |
Pterospora andromedea |
3 |
| woodland strawberry |
Fragaria vesca ssp. bracteata |
1 |
| woolly cinquefoil |
Potentilla hippiana |
4 |
| woolly distaff thistle |
Carthamus lanatus |
2 |
| woolly geranium |
Geranium erianthum |
1 |
| woolly ragwort |
Packera tomentosa |
3 |
| woolly sunbonnets |
Chaptalia tomentosa |
8 |
| Wyoming Indian paintbrush |
Castilleja linariifolia |
21 |
| yarrow |
Achillea aegyptiaca |
2 |
| yarrow |
Achillea spp. |
1 |
| ye gu |
Aeginetia indica |
3 |
| yellow 'lima |
Sida fallax |
44 |
| yellow balsam |
Croton flavens |
1 |
| yellow butterwort |
Pinguicula lutea |
4 |
| yellow chamomile |
Anthemis tinctoria |
3 |
| yellow colicroot |
Aletris lutea |
1 |
| yellow fieldcress |
Rorippa sylvestris |
2 |
| yellow glandweed |
Parentucellia viscosa |
5 |
| yellow hornpoppy |
Glaucium flavum |
12 |
| yellow mariposa lily |
Calochortus luteus |
9 |
| yellow marsh marigold |
Caltha palustris |
10 |
| yellow marsh saxifrage |
Saxifraga hirculus |
6 |
| yellow owl's-clover |
Orthocarpus luteus |
7 |
| yellow passionflower |
Passiflora lutea |
1 |
| yellow pitcherplant |
Sarracenia flava |
3 |
| yellow puff |
Neptunia lutea |
5 |
| yellow rocket |
Barbarea vulgaris |
16 |
| yellow starthistle |
Centaurea solstitialis |
15 |
| yellow sweetclover |
Melilotus officinalis |
17 |
| yellow thimbleweed |
Anemone richardsonii |
6 |
| yellow thistle |
Cirsium horridulum |
5 |
| yellow toadflax |
Linaria vulgaris |
9 |
| yellow trumpet |
Sarracenia alata |
5 |
| yellow wakerobin |
Trillium luteum |
4 |
| yellow waterlily |
Nuphar lutea |
13 |
| yellow woodsorrel |
Oxalis stricta |
7 |
| yellowdot saxifrage |
Saxifraga bronchialis |
31 |
| yellowflag iris |
Iris pseudacorus |
71 |
| yellowroot |
Xanthorhiza simplicissima |
3 |
| yellowspine thistle |
Cirsium ochrocentrum |
3 |
| yerba de hicotea |
Hygrophila costata |
9 |
| Zulu giant |
Stapelia gigantea |
1 |
