| Impact ID | 8791 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Watercress (Nasturtium officinale) can grow into large mats in slow parts of streams, typically in the bends and curves of the stream's path. If populations get big enough, they could contribute significantly to the meanders of the stream. |
| Reference | 42551 |
| Cost | |
| Location | Portage Creek, Kalamazoo, Michigan, USA |