| Impact ID | 5873 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | P. australis did not have negative competitive impacts on S. hermaphrodita in the rhizome but did outcompete the species via above ground shading. |
| Reference | 40717 |
| Great Lakes Region | No |
| Cost | |
| Location | |
