| Impact ID | 4579 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Phalaris arundinacea displaced the native plants Panicum virgatum (Switchgrass), Eragrostis pectinacea (Tufted lovegrass), Persicaria hydropiper (Marsh knotweed), and Vernonia fasciculata (Common ironweed) in the Chippewa River. |
| Reference | 36491 |
| Great Lakes Region | No |
| Cost | |
| Location | Chippewa River, Wisconsin, USA |
