| African mustard |
Brassica tournefortii |
1 |
| Allegheny spurge |
Pachysandra procumbens |
3 |
| alpine knapweed |
Centaurea nigrescens |
1 |
| American burnweed |
Erechtites hieraciifolius |
1 |
| American ginseng |
Panax quinquefolius |
3 |
| American sweetflag |
Acorus calamus |
1 |
| American yellow rocket |
Barbarea orthoceras |
1 |
| Amur peppervine |
Ampelopsis brevipedunculata |
1 |
| annual sowthistle |
Sonchus oleraceus |
1 |
| annual wormwood |
Artemisia annua |
1 |
| Asiatic dock |
Rumex confertus |
5 |
| Australian burnweed |
Erechtites minimus |
1 |
| Austrian fieldcress |
Rorippa austriaca |
1 |
| balsamapple |
Momordica charantia |
2 |
| Barbados aloe |
Aloe vera |
1 |
| bay starvine |
Schisandra glabra |
5 |
| bearberry |
Arctostaphylos uva-ursi |
2 |
| bellorita |
Erigeron bellioides |
1 |
| biennial wormwood |
Artemisia biennis |
1 |
| bigleaf lupine |
Lupinus polyphyllus |
1 |
| bluebead-lily |
Clintonia borealis |
2 |
| bluntlobe cliff fern |
Woodsia obtusa |
2 |
| bristly hawksbeard |
Crepis setosa |
1 |
| brittle bladderfern |
Cystopteris fragilis |
1 |
| broad beechfern |
Phegopteris hexagonoptera |
1 |
| broadleaf carpetgrass |
Axonopus compressus |
1 |
| broadleaf plantain |
Plantago major |
2 |
| buffalobur |
Solanum rostratum |
1 |
| bull thistle |
Cirsium vulgare |
1 |
| bur beggarticks |
Bidens tripartita |
1 |
| bur chervil |
Anthriscus caucalis |
1 |
| California brome |
Bromus carinatus |
1 |
| California cordgrass |
Spartina foliosa |
1 |
| cape ivy |
Delairea odorata |
1 |
| capeweed |
Arctotheca calendula |
1 |
| cardoon |
Cynara cardunculus |
1 |
| chicory |
Cichorium intybus |
1 |
| Chinese wisteria |
Wisteria sinensis |
1 |
| common cocklebur |
Xanthium strumarium |
1 |
| common comfrey |
Symphytum officinale |
1 |
| common fiddleneck |
Amsinckia menziesii var. intermedia |
2 |
| common ragweed |
Ambrosia artemisiifolia |
1 |
| common salsify |
Tragopogon porrifolius |
1 |
| common sunflower |
Helianthus annuus |
1 |
| common tansy |
Tanacetum vulgare |
1 |
| common teasel |
Dipsacus fullonum |
1 |
| common yarrow |
Achillea millefolium |
1 |
| compassplant |
Silphium laciniatum |
1 |
| Confederate wakerobin |
Trillium reliquum |
9 |
| cornflower |
Centaurea cyanus |
1 |
| Coulter's horseweed |
Laennecia coulteri |
2 |
| coyote tobacco |
Nicotiana attenuata |
1 |
| crimson pitcherplant |
Sarracenia leucophylla |
1 |
| croftonweed |
Ageratina adenophora |
2 |
| cutleaf burnweed |
Erechtites glomeratus |
1 |
| cutleaf coneflower |
Rudbeckia laciniata |
2 |
| dandelion |
Taraxacum officinale |
1 |
| dutchman's breeches |
Dicentra cucullaria |
1 |
| Dyer's woad |
Isatis tinctoria |
1 |
| English holly |
Ilex aquifolium |
1 |
| English ivy |
Hedera helix |
1 |
| featherleaf pepperweed |
Lepidium pinnatifidum |
1 |
| fennel |
Foeniculum vulgare |
1 |
| feverfew |
Tanacetum parthenium |
1 |
| field pennycress |
Thlaspi arvense |
1 |
| field pepperweed |
Lepidium campestre |
1 |
| Fitch's tarweed |
Hemizonia fitchii |
1 |
| flatsedge |
Cyperus spp. |
1 |
| flixweed |
Descurainia sophia |
2 |
| goldenseal |
Hydrastis canadensis |
2 |
| Great Valley gumweed |
Grindelia camporum var. camporum |
1 |
| greater ammi |
Ammi majus |
1 |
| greater fringed gentian |
Gentianopsis crinita |
2 |
| green fiveleaf orchid |
Isotria medeoloides |
3 |
| green pitcherplant |
Sarracenia oreophila |
10 |
| hairy beggarticks |
Bidens pilosa |
1 |
| hairy cat's ear |
Hypochaeris radicata |
1 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy shadow witch |
Ponthieva racemosa |
1 |
| hedge mustard |
Sisymbrium officinale |
2 |
| hedgeparsley |
Torilis arvensis |
2 |
| hooded pitcherplant |
Sarracenia minor |
2 |
| horseweed |
Conyza canadensis |
1 |
| houndstongue |
Cynoglossum officinale |
1 |
| Indian rattlebox |
Crotalaria assamica |
1 |
| Italian arum |
Arum italicum |
2 |
| Italian plumeless thistle |
Carduus pycnocephalus |
1 |
| Jersey cudweed |
Pseudognaphalium luteoalbum |
1 |
| Jerusalem artichoke |
Helianthus tuberosus |
2 |
| Jerusalem-oak goosefoot |
Chenopodium botrys |
1 |
| Johnston's seaheath |
Frankenia johnstonii |
5 |
| kidneyleaf grass of Parnassus |
Parnassia asarifolia |
2 |
| knotgrass |
Paspalum distichum |
1 |
| knotted hedgeparsley |
Torilis nodosa |
2 |
| largeflower heartleaf |
Hexastylis shuttleworthii var. harperi |
1 |
| little western bittercress |
Cardamine oligosperma |
1 |
| London rocket |
Sisymbrium irio |
1 |
| marijuana |
Cannabis sativa |
1 |
| marsh yellowcress |
Rorippa palustris |
1 |
| Mexican whorled milkweed |
Asclepias fascicularis |
1 |
| miracle fruit |
Gymnema sylvestre |
1 |
| mountain woodsorrel |
Oxalis montana |
1 |
| mouse-ear cress |
Arabidopsis thaliana |
1 |
| musk thistle |
Carduus nutans |
1 |
| narrowleaf blueeyed-grass |
Sisyrinchium angustifolium |
1 |
| New Zealand spinach |
Tetragonia tetragonioides |
1 |
| nipplefruit |
Solanum mammosum |
2 |
| northern spicebush |
Lindera benzoin |
1 |
| Oconee bells |
Shortia galacifolia |
7 |
| orbicular whitetop |
Lepidium chalepense |
1 |
| oriental bittersweet |
Celastrus orbiculatus |
1 |
| oriental mustard |
Sisymbrium orientale |
1 |
| Pacific hound's tongue |
Cynoglossum grande |
1 |
| Pacific poison-oak |
Toxicodendron diversilobum |
1 |
| Palmer amaranth |
Amaranthus palmeri |
1 |
| parrot pitcherplant |
Sarracenia psittacina |
3 |
| partridgeberry |
Mitchella repens |
1 |
| peregrine thistle |
Cirsium cymosum |
1 |
| perennial sowthistle |
Sonchus arvensis |
1 |
| persistent wakerobin |
Trillium persistens |
3 |
| peyote |
Lophophora williamsii |
5 |
| pineapple-weed |
Matricaria discoidea |
1 |
| pink lady's-slipper |
Cypripedium acaule |
1 |
| pinnate tansymustard |
Descurainia pinnata |
1 |
| plantainleaf pussytoes |
Antennaria plantaginifolia |
1 |
| poison-hemlock |
Conium maculatum |
1 |
| polytrichum moss |
Polytrichum commune |
1 |
| prairie rosinweed |
Silphium terebinthinaceum |
1 |
| pride of Madeira |
Echium candicans |
1 |
| prostrate globe-amaranth |
Gomphrena serrata |
1 |
| purple cudweed |
Gamochaeta purpurea |
1 |
| purpletassels |
Dalea gattingeri |
1 |
| pygmy pipes |
Monotropsis odorata |
2 |
| radish |
Raphanus sativus |
1 |
| red sandspurry |
Spergularia rubra |
1 |
| redpurple ragwort |
Senecio elegans |
1 |
| redroot pigweed |
Amaranthus retroflexus |
1 |
| redvine |
Brunnichia ovata |
2 |
| reed canarygrass |
Phalaris arundinacea |
1 |
| Russian knapweed |
Rhaponticum repens |
1 |
| Russian mallow |
Althaea armeniaca |
6 |
| saltcedar |
Tamarix ramosissima |
1 |
| sand heath |
Ceratiola ericoides |
4 |
| saw palmetto |
Serenoa repens |
1 |
| Scotch thistle |
Onopordum acanthium |
1 |
| seepwillow |
Baccharis salicifolia |
1 |
| sharpwing monkeyflower |
Mimulus alatus |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
3 |
| skunkcabbage |
Symplocarpus foetidus |
5 |
| slender aster |
Symphyotrichum divaricatum |
2 |
| small flower touch-me-not |
Impatiens parviflora |
4 |
| smooth cat's ear |
Hypochaeris glabra |
1 |
| smooth pigweed |
Amaranthus hybridus |
1 |
| snowy thistle |
Cirsium occidentale var. candidissimum |
1 |
| southern arrowwood |
Viburnum dentatum |
1 |
| southern sida |
Sida acuta |
1 |
| spiny amaranth |
Amaranthus spinosus |
1 |
| spiny cocklebur |
Xanthium spinosum |
1 |
| spiny plumeless thistle |
Carduus acanthoides |
1 |
| spiny sowthistle |
Sonchus asper |
1 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| spreading pricklypear |
Opuntia humifusa |
1 |
| squirreltail |
Elymus elymoides |
2 |
| star-flower |
Trientalis borealis |
2 |
| sticky chickweed |
Cerastium glomeratum |
2 |
| stinkgrass |
Eragrostis cilianensis |
1 |
| striped bladderwort |
Utricularia striata |
1 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| sweet pitcherplant |
Sarracenia rubra |
5 |
| tall fleabane |
Conyza floribunda |
1 |
| tall hedge mustard |
Sisymbrium loeselii |
1 |
| tall morningglory |
Ipomoea purpurea |
1 |
| tansy ragwort |
Senecio jacobaea |
1 |
| telegraphplant |
Heterotheca grandiflora |
1 |
| thymeleaf sandwort |
Arenaria serpyllifolia |
1 |
| tumble mustard |
Sisymbrium altissimum |
1 |
| twinleaf |
Jeffersonia diphylla |
3 |
| veiny pepperweed |
Lepidium oblongum var. oblongum |
1 |
| Venus flytrap |
Dionaea muscipula |
4 |
| virgate tarweed |
Holocarpha virgata |
1 |
| Virginia pepperweed |
Lepidium virginicum |
1 |
| wavyleaf purple coneflower |
Echinacea simulata |
2 |
| wavyleaf thistle |
Cirsium undulatum |
1 |
| West Indian nightshade |
Solanum ptycanthum |
2 |
| western salsify |
Tragopogon dubius |
1 |
| western waterhemlock |
Cicuta douglasii |
1 |
| white bergamot |
Monarda clinopodia |
1 |
| white bladderflower |
Araujia sericifera |
1 |
| whiteplume wirelettuce |
Stephanomeria exigua ssp. coronaria |
1 |
| wholeleaf rosinweed |
Silphium integrifolium |
1 |
| wild bergamot |
Monarda fistulosa |
1 |
| wild mustard |
Sinapis arvensis |
1 |
| wild parsnip |
Pastinaca sativa |
1 |
| willowleaf lettuce |
Lactuca saligna |
1 |
| witchgrass |
Panicum capillare |
1 |
| woolly distaff thistle |
Carthamus lanatus |
2 |
| yellow chamomile |
Anthemis tinctoria |
1 |
| yellow pitcherplant |
Sarracenia flava |
4 |
| yellow rocket |
Barbarea vulgaris |
1 |
| yellow woodsorrel |
Oxalis stricta |
1 |
| yellowspine thistle |
Cirsium ochrocentrum |
1 |
| zizotes milkweed |
Asclepias oenotheroides |
1 |
