| Impact ID | 8950 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Reports of cattail, such as Typha angustifolia, dominated habitats, have greatly increased in the Midwest over the last few decades. |
| Reference | 24969 |
| Great Lakes Region | No |
| Cost | |
| Location | Midwest, USA |
