| Impact ID | 7986 |
| Impact Type | Biocontrol |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Epilobium hirsutum (great hairy willow herb) can co-exist with Lythrum salicaria (purple loosestrife) along riparian areas created by erosion. Great hairy willow herb outcompetes and grows faster than purple loosestrife in the shorter days and colder temperatures of autumn. In the spring, this relationship is reversed, with purple loosestrife having a faster growth rate. |
| Reference | 25408 |
| Cost | |
| Location | |