| Impact ID | 7893 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Carex acutiformis may be a very serious threat to native vegetation on a local geographic scale due to its ability to spread rapidly via vegetative growth and out-compete native species for nutrients and light. |
| Reference | 25183 |
| Cost | |
| Location | Ottawa, Ontario |