| Impact ID | 3810 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | The author states that in the St. Lawrence River area of the United States, that this species encroaches upon and eliminates some native plant species. |
| Reference | 10394 |
| Great Lakes Region | No |
| Cost | |
| Location | St. Lawrence River Drainage, USA |
