| Impact ID | 4004 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Starry stonewort (Nitellopsis obtusa) outcompetes all other native and nonnative aquatic plant species in Michigan, including Eurasian watermilfoil (Myriophyllum spicatum), fanwort (Cabomba caroliniana), and curly leaf pondweed (Potamogeton crispus). |
| Reference | 19736 |
| Cost | |
| Location | Michigan, USA |