| Canada thistle |
Cirsium arvense (L.) Scop. |
Asteraceae |
Asterales |
| musk thistle, nodding thistle |
Carduus nutans L. |
Asteraceae |
Asterales |
| round leaf bittersweet |
Celastrus orbiculatus Thunb. |
Celastraceae |
Celastrales |
| Eurasian watermilfoil |
Myriophyllum spicatum L. |
Haloragaceae |
Haloragales |
| spiny plumeless thistle, plumeless thistle |
Carduus acanthoides L. |
Asteraceae |
Asterales |
| puncturevine |
Tribulus terrestris L. |
Zygophyllaceae |
Sapindales |
| swamp stonecrop |
Crassula helmsii A. Berger |
Crassulaceae |
Rosales |
| yellow fieldcress |
Rorippa sylvestris (L.) Bess. |
Brassicaceae |
Capparales |
| beach vitex |
Vitex rotundifolia L. f. |
Verbenaceae |
Lamiales |
| watermoss |
Salvinia spp. Séguier |
Salviniaceae |
Hydropteridales |
| crested floating heart |
Nymphoides cristata (Roxb.) O. Ktze. |
Menyanthaceae |
Solanales |
| yellow floating heart |
Nymphoides peltata (S.G. Gmel.) Kuntze |
Menyanthaceae |
Solanales |
| bushkiller |
Cayratia japonica (Thunb.) Gagnepain |
Vitaceae |
Rhamnales |
| water chestnut |
Trapa L. |
Trapaceae |
Myrtales |
| water primrose |
Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz |
Onagraceae |
Myrtales |
| water snowflake |
Nymphoides indica (L.) Kuntze |
Menyanthaceae |
Solanales |
| loosestrife |
Lythrum spp. L. |
Lythraceae |
Myrtales |
| oxygen-weed |
Lagarosiphon spp. |
Hydrocharitaceae |
Hydrocharitales |
