| Impact ID | 3477 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | Presence of Lythrum salicaria did not have a have a strong impact on the reproduction or abundance of the rare native Henderson’s checker-mallow (Sidalcea hendersonii), and removal of Lythrum salicaria improved the growth of Sidalcea hendersonii only in the first year. |
| Reference | 33991 |
| Cost | |
| Location | |