| Canada thistle |
Cirsium arvense (L.) Scop. |
Asteraceae |
Asterales |
| musk thistle, nodding thistle |
Carduus nutans L. |
Asteraceae |
Asterales |
| spotted knapweed |
Centaurea stoebe ssp. micranthos (Gugler) Hayek |
Asteraceae |
Asterales |
| Russian olive |
Elaeagnus angustifolia L. |
Elaeagnaceae |
Rhamnales |
| purple loosestrife |
Lythrum salicaria L. |
Lythraceae |
Myrtales |
| tamarisk |
Tamarix spp. L. |
Tamaricaceae |
Violales |
| common mullein |
Verbascum thapsus L. |
Scrophulariaceae |
Scrophulariales |
| spiny plumeless thistle, plumeless thistle |
Carduus acanthoides L. |
Asteraceae |
Asterales |
| yellow toadflax |
Linaria vulgaris P. Mill. |
Scrophulariaceae |
Scrophulariales |
| field bindweed |
Convolvulus arvensis L. |
Convolvulaceae |
Solanales |
| Russian knapweed |
Rhaponticum repens (L.) Hidalgo |
Asteraceae |
Asterales |
| yellow starthistle |
Centaurea solstitialis L. |
Asteraceae |
Asterales |
| common St. Johnswort |
Hypericum perforatum L. |
Hypericaceae |
Malpighiales |
| Scotch thistle |
Onopordum acanthium L. |
Asteraceae |
Asterales |
| diffuse knapweed |
Centaurea diffusa Lam. |
Asteraceae |
Asterales |
| Dyer's woad |
Isatis tinctoria L. |
Brassicaceae |
Capparales |
| skeletonleaf bursage |
Ambrosia tomentosa Nutt. |
Asteraceae |
Asterales |
| common burdock, lesser burdock |
Arctium minus Bernh. |
Asteraceae |
Asterales |
| hoary cress |
Lepidium draba (L.) Desv |
Brassicaceae |
Capparales |
| houndstongue |
Cynoglossum officinale L. |
Boraginaceae |
Lamiales |
| quackgrass |
Elymus repens (L.) Gould |
Poaceae |
Cyperales |
| black henbane |
Hyoscyamus niger L. |
Solanaceae |
Solanales |
| perennial pepperweed |
Lepidium latifolium L. |
Brassicaceae |
Capparales |
| oxeye daisy |
Leucanthemum vulgare Lam. |
Asteraceae |
Asterales |
| Dalmatian toadflax |
Linaria dalmatica (L.) P. Mill. |
Scrophulariaceae |
Scrophulariales |
| perennial sowthistle |
Sonchus arvensis L. |
Asteraceae |
Asterales |
| medusahead |
Taeniatherum caput-medusae (L.) Nevski |
Poaceae |
Cyperales |
| common tansy |
Tanacetum vulgare L. |
Asteraceae |
Asterales |
| ventenata |
Ventenata dubia (Leers) Coss. & Durieu |
Poaceae |
Cyperales |
| leafy spurge |
Euphorbia virgata Waldst. & Kit. |
Euphorbiaceae |
Euphorbiales |
