| giant salvinia |
Salvinia molesta D. S. Mitchell |
| Canada thistle |
Cirsium arvense (L.) Scop. |
| tree-of-heaven |
Ailanthus altissima (P. Mill.) Swingle |
| giant reed |
Arundo donax L. |
| musk thistle, nodding thistle |
Carduus nutans L. |
| common teasel |
Dipsacus fullonum L. |
| Russian olive |
Elaeagnus angustifolia L. |
| hydrilla |
Hydrilla verticillata (L. f.) Royle |
| purple loosestrife |
Lythrum salicaria L. |
| parrotfeather |
Myriophyllum aquaticum (Vell.) Verdc. |
| Eurasian watermilfoil |
Myriophyllum spicatum L. |
| tamarisk |
Tamarix L. |
| bull thistle |
Cirsium vulgare (Savi) Ten. |
| Siberian elm |
Ulmus pumila L. |
| yellow toadflax |
Linaria vulgaris P. Mill. |
| poison hemlock |
Conium maculatum L. |
| Russian knapweed |
Rhaponticum repens (L.) Hidalgo |
| yellow starthistle |
Centaurea solstitialis L. |
| Scotch thistle |
Onopordum acanthium L. |
| diffuse knapweed |
Centaurea diffusa Lam. |
| Dyer's woad |
Isatis tinctoria L. |
| jointed goatgrass |
Aegilops cylindrica Host |
| camelthorn |
Alhagi maurorum Medik |
| cheatgrass, downy brome |
Bromus tectorum L. |
| hoary cress |
Lepidium draba (L.) Desv |
| purple starthistle |
Centaurea calcitrapa L. |
| Malta starthistle |
Centaurea melitensis L. |
| alpine knapweed, Tyrol knapweed |
Centaurea nigrescens Willd |
| chicory |
Cichorium intybus L. |
| Uruguayan pampas grass |
Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. |
| quackgrass |
Elymus repens (L.) Gould |
| myrtle spurge |
Euphorbia myrsinites L |
| halogeton, saltlover |
Halogeton glomeratus (Bieb.) C.A. Mey. |
| black henbane |
Hyoscyamus niger L. |
| perennial pepperweed |
Lepidium latifolium L. |
| oxeye daisy |
Leucanthemum vulgare Lam. |
| Dalmatian toadflax |
Linaria dalmatica (L.) P. Mill. |
| African rue |
Peganum harmala L. |
| crimson fountaingrass |
Cenchrus setaceus (Forssk.) Morrone |
| curly leaf pondweed |
Potamogeton crispus L. |
| spiny cocklebur |
Xanthium spinosum L. |
| pepperweed |
Lepidium |
| yellow bluestem |
Bothriochloa ischaemum (L.) Keng |
| scentless chamomile |
Tripleurospermum inodorum (L.) Sch. Bip. |
| ravennagrass |
Saccharum ravennae L. |
| buffelgrass |
Cenchrus ciliaris L. |
| leafy spurge |
Euphorbia virgata Waldst. & Kit. |
| spotted knapweed |
Centaurea stoebe australis (Pancic ex A.Kern.) Greuter |
