Hairy willow-herb
(Epilobium hirsutum)
- 3 - 6' tall; perennial
- Blooms June to August
- Flowers single, 1/2 - 1"
- Stems covered in soft hairs
- Seeds with white silky tuft in long seedpod
- Leaves 1/2" wide, 2 - 4" long, opposite, lance-shaped with toothed edges; attached directly to stem
- Numerous native species have been found in CO wetlands
Colorado Front Range Common Willowherbs
Compares the 3 most common willowherbs to the non-native hairy willowherb
Access the EDDMapS distribution map for Hairy willow-herb in Colorado by clicking the image below.
Access the USGS INHABIT suitability model for Hairy willow-herb in Colorado by clicking the image below.
INHABIT is an online tool created by the USGS that provides species distribution models for various invasive plant species. The models associate known occurrences of a species with environmental characteristics to create maps that predict habitat suitability, and these maps can be used to assess the potential spread of noxious weeds. Learn more about INHABIT: https://www.usgs.gov/centers/fort-collins-science-center/science/inhabit-a-web-based-decision-support-tool-invasive