| Impact ID | 5654 |
| Impact Type | Other |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Crassula helmsii suppressed the germination of purple loosestrife and willowherb with reductions of 69% and 83% respectively. It also reduced the germination of water mint, celery-leaved buttercup, brooklime, and water forget-me-not. |
| Reference | 29482 |
| Great Lakes Region | Yes |
| Cost | |
| Location | |
