| Impact ID | 8643 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Yellow loosestrife (Lysimachia vulgaris) has also been observed outcompeting purple loosestrife (Lythrum salicaria), a very problematic weed that is also found in the Great Lakes. |
| Reference | 35271 |
| Cost | |
| Location | |