| African milkweed |
Asclepias fruticosa |
1 |
| African mustard |
Brassica tournefortii |
1 |
| agave |
Agave spp. |
1 |
| alkali desertparsley |
Lomatium caruifolium |
1 |
| Allegheny mound ant |
Formica exsectoides |
1 |
| alpine woodfern |
Dryopteris wallichiana |
2 |
| amaumau fern |
Sadleria cyatheoides |
1 |
| amberique-bean |
Strophostyles helvola |
2 |
| American burnweed |
Erechtites hieraciifolius |
1 |
| Asiatic dayflower |
Commelina communis |
2 |
| Australian saltbush |
Atriplex semibaccata |
2 |
| babysbreath |
Gypsophila paniculata |
1 |
| bagpod |
Sesbania vesicaria |
1 |
| bahiagrass |
Paspalum notatum |
1 |
| balloonvine |
Cardiospermum halicacabum |
1 |
| beaked hazelnut |
Corylus cornuta |
1 |
| beardlip penstemon |
Penstemon barbatus |
1 |
| beargrass |
Yucca filamentosa |
1 |
| beautiful fleabane |
Erigeron formosissimus |
1 |
| bigpod sesbania |
Sesbania herbacea |
1 |
| bigtop lovegrass |
Eragrostis hirsuta |
1 |
| bitter panicgrass |
Panicum amarum |
2 |
| black huckleberry |
Gaylussacia baccata |
1 |
| black locust |
Robinia pseudoacacia |
1 |
| black spleenwort |
Asplenium adiantum-nigrum |
1 |
| blackhead fleabane |
Erigeron melanocephalus |
2 |
| bladder campion |
Silene vulgaris |
1 |
| blanketflower |
Gaillardia aristata |
1 |
| bloodroot |
Sanguinaria canadensis |
1 |
| blue mountainheath |
Phyllodoce caerulea |
1 |
| Brazilian peppertree |
Schinus terebinthifolius |
1 |
| bristlecone pine |
Pinus aristata |
1 |
| brittle pricklypear |
Opuntia fragilis |
2 |
| broadleaf arnica |
Arnica latifolia |
1 |
| brown soft scale |
Coccus hesperidum |
1 |
| bulblet bladderfern |
Cystopteris bulbifera |
2 |
| bullnettle |
Cnidoscolus stimulosus |
1 |
| bur chervil |
Anthriscus caucalis |
1 |
| cactus apple |
Opuntia engelmannii |
1 |
| Cainville thistle |
Cirsium calcareum |
1 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
1 |
| camphortree |
Cinnamomum camphora |
1 |
| cape ivy |
Delairea odorata |
3 |
| Caribbean trumpet-tree |
Tabebuia aurea |
2 |
| Carolina redroot |
Lachnanthes caroliana |
1 |
| catbriar |
Smilax bona-nox |
1 |
| catclaw-vine |
Macfadyena unguis-cati |
1 |
| chicory |
Cichorium intybus |
1 |
| clasping pepperweed |
Lepidium perfoliatum |
1 |
| climbing fetterbush |
Pieris phillyreifolia |
1 |
| clubmoss |
Lycopodium spp. |
3 |
| common chickweed |
Stellaria media |
1 |
| common chickweed |
Stellaria pallida |
1 |
| common cocklebur |
Xanthium strumarium |
1 |
| common comfrey |
Symphytum officinale |
1 |
| common reed |
Phragmites australis |
1 |
| common St. Johnswort |
Hypericum perforatum |
1 |
| common sunflower |
Helianthus annuus |
2 |
| common teasel |
Dipsacus fullonum |
1 |
| coral vine |
Antigonon leptopus |
2 |
| corn chamomile |
Anthemis arvensis |
1 |
| corn spurry |
Spergula arvensis |
1 |
| coyote willow |
Salix exigua |
2 |
| crested woodfern |
Dryopteris cristata |
1 |
| crimson pitcherplant |
Sarracenia leucophylla |
5 |
| crimsoneyed rosemallow |
Hibiscus moscheutos |
1 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
1 |
| cutleaf burnweed |
Erechtites glomeratus |
1 |
| cutleaf daisy |
Erigeron compositus |
1 |
| cutleaf geranium |
Geranium dissectum |
1 |
| dallisgrass |
Paspalum dilatatum |
2 |
| diffuse knapweed |
Centaurea diffusa |
6 |
| ditch polypogon |
Polypogon interruptus |
2 |
| downy danthonia |
Danthonia sericea |
1 |
| downy mildew |
Peronospora farinosa f.sp. betae |
1 |
| Drummond's rockcress |
Arabis drummondii |
1 |
| early wintercress |
Barbarea verna |
1 |
| eastern poison-ivy |
Toxicodendron radicans |
2 |
| European stinging nettle |
Urtica dioica ssp. dioica |
1 |
| false chamomile |
Tripleurospermum perforatum |
2 |
| Fendler's rockcress |
Arabis fendleri |
1 |
| fennel |
Foeniculum vulgare |
1 |
| fetterbush lyonia |
Lyonia lucida |
1 |
| field bindweed |
Convolvulus arvensis |
1 |
| field dodder |
Cuscuta pentagona |
1 |
| field horsetail |
Equisetum arvense |
1 |
| field marigold |
Calendula arvensis |
1 |
| field pennycress |
Thlaspi arvense |
2 |
| field pepperweed |
Lepidium campestre |
1 |
| fivenerve helianthella |
Helianthella quinquenervis |
1 |
| floating bladderwort |
Utricularia inflata |
1 |
| Florida betony |
Stachys floridana |
2 |
| formosa firethorn |
Pyracantha koidzumii |
2 |
| fragrant woodfern |
Dryopteris fragrans |
3 |
| Fuller's teasel |
Dipsacus sativus |
1 |
| garden orach |
Atriplex hortensis |
1 |
| garlic mustard |
Alliaria petiolata |
2 |
| giant cane |
Arundinaria gigantea |
1 |
| giant plumegrass |
Saccharum giganteum |
1 |
| golden bamboo |
Phyllostachys aurea |
1 |
| goosegrass |
Eleusine indica |
1 |
| grape woodbine |
Parthenocissus vitacea |
1 |
| Graphiola leaf spot |
Graphiola phoenicis |
1 |
| gray alder |
Alnus incana |
2 |
| Greater Florida spurge |
Euphorbia floridana |
4 |
| greater swinecress |
Coronopus squamatus |
1 |
| green foxtail |
Setaria viridis |
1 |
| Gunnison County rockcress |
Arabis pallidifolia |
1 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy purslane |
Portulaca villosa |
1 |
| hairy whitetop |
Cardaria pubescens |
1 |
| hapu'u |
Cibotium glaucum |
1 |
| Hawai'ian cotton |
Gossypium tomentosum |
2 |
| hedgeparsley |
Torilis arvensis |
1 |
| hemp dogbane |
Apocynum cannabinum |
1 |
| hollyfern |
Polystichum spp. |
1 |
| hooded pitcherplant |
Sarracenia minor |
4 |
| horned dandelion |
Taraxacum ceratophorum |
1 |
| horseweed |
Conyza canadensis |
2 |
| houndstongue |
Cynoglossum officinale |
1 |
| Indianpipe |
Monotropa uniflora |
1 |
| Italian hawksbeard |
Crepis bursifolia |
1 |
| ivyleaf morningglory |
Ipomoea hederacea |
1 |
| Jamaican nightshade |
Solanum jamaicense |
1 |
| Japanese hop |
Humulus japonicus |
1 |
| Javanese flatsedge |
Cyperus javanicus |
1 |
| johnsongrass |
Sorghum halepense |
1 |
| kapoktree |
Ceiba pentandra |
6 |
| knotroot foxtail |
Setaria parviflora |
2 |
| kudzu |
Pueraria montana var. lobata |
1 |
| large crabgrass |
Digitaria sanguinalis |
1 |
| large mountain fleabane |
Erigeron coulteri |
1 |
| lesser hawkbit |
Leontodon taraxacoides |
1 |
| lesser swinecress |
Coronopus didymus |
1 |
| mallow bindweed |
Convolvulus althaeoides |
1 |
| Malta starthistle |
Centaurea melitensis |
1 |
| milky cap |
Lactarius vinaceorufescens |
8 |
| miniature lupine |
Lupinus bicolor |
1 |
| Molokai flatsedge |
Cyperus phleoides |
1 |
| monkeypod |
Pithecellobium dulce |
1 |
| moundlily yucca |
Yucca gloriosa |
1 |
| mountain goldenbanner |
Thermopsis montana |
1 |
| multiflora rose |
Rosa multiflora |
1 |
| muscadine |
Vitis rotundifolia |
1 |
| nannyberry |
Viburnum lentago |
1 |
| narrow swordfern |
Nephrolepis cordifolia |
1 |
| narrowleaf firethorn |
Pyracantha angustifolia |
1 |
| narrowleaf hawksbeard |
Crepis tectorum |
1 |
| narrowleaf spring-beauty |
Claytonia virginica |
1 |
| native caper |
Capparis sandwichiana |
2 |
| needle palm |
Rhapidophyllum hystrix |
5 |
| nightflowering catchfly |
Silene noctiflora |
1 |
| nimblewill |
Muhlenbergia schreberi |
2 |
| nipplefruit |
Solanum mammosum |
2 |
| northern bedstraw |
Galium boreale |
1 |
| notched cowpea |
Vigna marina |
1 |
| Nuttall povertyweed |
Monolepis nuttalliana |
1 |
| Nuttall's sunflower |
Helianthus nuttallii |
1 |
| Oahu sedge |
Carex wahuensis |
1 |
| orbicular whitetop |
Lepidium chalepense |
1 |
| orchardgrass |
Dactylis glomerata |
1 |
| oriental bittersweet |
Celastrus orbiculatus |
1 |
| Ouachita Mountain sedge |
Carex ouachitana |
2 |
| Pacific poison-oak |
Toxicodendron diversilobum |
1 |
| painted poinsettia |
Euphorbia cyathophora |
1 |
| pale agoseris |
Agoseris glauca |
1 |
| Paraguay starbur |
Acanthospermum australe |
1 |
| Parry's arnica |
Arnica parryi |
1 |
| pawpaw |
Asimina triloba |
2 |
| peppervine |
Ampelopsis arborea |
3 |
| perfumed passionflower |
Passiflora vitifolia |
2 |
| pineland threeawn |
Aristida stricta |
1 |
| plains pricklypear |
Opuntia polyacantha |
2 |
| poverty sumpweed |
Iva axillaris |
1 |
| powdery mildew |
Sphaerotheca delphinii |
4 |
| prairie sagewort |
Artemisia frigida |
1 |
| prickly pear moth |
Cactoblastis cactorum |
1 |
| pricklypear/cholla |
Opuntia spp. |
1 |
| pritchardia |
Pritchardia spp. |
1 |
| prostrate pigweed |
Amaranthus blitoides |
1 |
| purple nutsedge |
Cyperus rotundus |
2 |
| purple pampasgrass |
Cortaderia jubata |
1 |
| purple pitcherplant |
Sarracenia purpurea |
5 |
| purpletop |
Tridens flavus |
1 |
| quackgrass |
Elymus repens |
1 |
| Queen Anne's lace, wild carrot |
Daucus carota |
1 |
| queen sago |
Cycas circinalis |
2 |
| rapeseed |
Brassica napus |
1 |
| reed canarygrass |
Phalaris arundinacea |
2 |
| resurrection fern |
Pleopeltis polypodioides |
3 |
| robust horsenettle |
Solanum dimidiatum |
1 |
| rocket |
Hesperis spp. |
1 |
| Rollins' twinpod |
Physaria rollinsii |
2 |
| rose |
Rosa spp. |
2 |
| rose clover |
Trifolium hirtum |
1 |
| roundleaf bluet |
Houstonia procumbens |
2 |
| rush skeletonweed |
Chondrilla juncea |
1 |
| Russian-olive |
Elaeagnus angustifolia |
1 |
| Russian-thistle |
Salsola tragus |
2 |
| saguaro |
Carnegiea gigantea |
1 |
| saltmarsh morningglory |
Ipomoea sagittata |
1 |
| sanddune wallflower |
Erysimum capitatum |
1 |
| Santa Cruz tarplant |
Holocarpha macradenia |
1 |
| savannah meadowbeauty |
Rhexia alifanus |
1 |
| saw palmetto |
Serenoa repens |
2 |
| scarlet hedgehog cactus |
Echinocereus coccineus |
2 |
| seaoats |
Uniola paniculata |
1 |
| sensitiveplant |
Mimosa pudica |
1 |
| shining pepperweed |
Lepidium nitidum var. nitidum |
1 |
| shortleaf rose gentian |
Sabatia brevifolia |
2 |
| shortray fleabane |
Erigeron lonchophyllus |
1 |
| showy evening-primrose |
Oenothera speciosa |
2 |
| showy rattlebox |
Crotalaria spectabilis |
2 |
| silver beardgrass |
Bothriochloa laguroides |
1 |
| slender aster |
Symphyotrichum divaricatum |
1 |
| slender rose gentian |
Sabatia campanulata |
1 |
| slenderleaf sundew |
Drosera linearis |
1 |
| smallflower galinsoga |
Galinsoga parviflora |
3 |
| smallflower pawpaw |
Asimina parviflora |
1 |
| smooth blue aster |
Symphyotrichum laeve var. laeve |
1 |
| smooth brome |
Bromus inermis |
1 |
| southern sandbur |
Cenchrus echinatus |
6 |
| spicebush swallowtail |
Papilio troilus |
2 |
| spiked rampion |
Phyteuma spicatum |
1 |
| spiny amaranth |
Amaranthus spinosus |
2 |
| spinystar cactus |
Escobaria vivipara var. vivipara |
1 |
| spoonleaf sundew |
Drosera intermedia |
8 |
| spoonleaf yellow loosestrife |
Lysimachia mauritiana |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
1 |
| spotted spurge |
Euphorbia maculata |
2 |
| spotted St. Johnswort |
Hypericum punctatum |
1 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| Sprenger's asparagus fern |
Asparagus aethiopicus |
1 |
| squarrose knapweed |
Centaurea virgata |
1 |
| St. Peterswort |
Hypericum crux-andreae |
1 |
| sticky chickweed |
Cerastium glomeratum |
1 |
| sticky flatsedge |
Cyperus trachysanthos |
1 |
| sticky gilia |
Gilia pinnatifida |
1 |
| stinkwort |
Dittrichia graveolens |
1 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| Surinam sedge |
Cyperus surinamensis |
1 |
| swamp smartweed |
Persicaria hydropiperoides |
3 |
| Tahitian screwpine |
Pandanus tectorius |
1 |
| tall fescue |
Festuca arundinacea |
2 |
| tall lettuce |
Lactuca canadensis |
1 |
| telegraphplant |
Heterotheca grandiflora |
1 |
| thistle |
Cirsium spp. |
1 |
| timber milkvetch |
Astragalus miser |
1 |
| timothy |
Phleum pratense |
1 |
| torpedograss |
Panicum repens |
5 |
| tower-mustard |
Arabis glabra |
2 |
| tungoil tree |
Vernicia fordii |
1 |
| uglynest caterpillar |
Archips cerasivorana |
1 |
| Venus flytrap |
Dionaea muscipula |
1 |
| Virginia-creeper |
Parthenocissus quinquefolia |
6 |
| water locust |
Gleditsia aquatica |
2 |
| Waterfall's sedge |
Carex latebracteata |
2 |
| waterstarwort |
Callitriche palustris |
1 |
| wayfaringtree |
Viburnum lantana |
1 |
| weeping lovegrass |
Eragrostis curvula |
1 |
| western marsh cudweed |
Gnaphalium palustre |
1 |
| western sweetvetch |
Hedysarum occidentale |
1 |
| western white clematis |
Clematis ligusticifolia |
1 |
| whisk fern |
Psilotum nudum |
1 |
| white fringetree |
Chionanthus virginicus |
2 |
| white leadtree |
Leucaena leucocephala |
3 |
| white panicle aster |
Symphyotrichum lanceolatum |
1 |
| whiteflower leafcup |
Polymnia canadensis |
1 |
| whitestem goldenbush |
Ericameria discoidea |
1 |
| wild celery |
Cyclospermum leptophyllum |
1 |
| wild cucumber |
Echinocystis lobata |
1 |
| wild onion |
Allium canadense |
1 |
| wili wili |
Erythrina sandwicensis |
6 |
| willow |
Salix spp. |
1 |
| willowleaf lettuce |
Lactuca saligna |
1 |
| wine raspberry |
Rubus phoenicolasius |
1 |
| woodland groundsel |
Senecio sylvaticus |
1 |
| woollysheath threeawn |
Aristida lanosa |
1 |
| Wyoming Indian paintbrush |
Castilleja linariifolia |
5 |
| yellow fieldcress |
Rorippa sylvestris |
2 |
| yellow nutsedge |
Cyperus esculentus |
1 |
| yellow pitcherplant |
Sarracenia flava |
3 |
| yellow rocket |
Barbarea vulgaris |
1 |