| Ambrosia trifida |
| Aster subulatus |
| Bacopa rotundifolia |
| Cardiospermum halicacabum* |
| Cephalanthus occidentalis |
| Ceratophyllum sp. |
| Eichhornia crassipes |
| Eupatorium serotinum* |
| Heliotropium indicum* |
| Heteranthera sp. |
| Hibiscus lasiocarpus* |
| Hydrilla verticillata |
| Iva annua* |
| Lemna minor |
| Limnobium spongia |
| Najas guadalupensis |
| Panicum sp. |
| Phyla strigulosa* |
| Polygonum sp. |
| Sesbania drummondii* |
| Sesbania herbacea (S. macrocarpa)* |
| Solanum carolinense* |
| Spilanthes americana (Acmella oppositifolia)* |
| Wolffia sp. |
*taxa not listed on original recognition list