| Impact ID | 4583 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Phalaris arundinacea has displaced the native vegetation and taken over the outer edges of wetlands in southeastern New Hampshire. |
| Reference | 10370 |
| Great Lakes Region | No |
| Cost | |
| Location | Southeastern New Hampshire, USA |
