| Epilobium torreyi | |
|---|---|
| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Myrtales | 
| Family: | Onagraceae | 
| Genus: | Epilobium | 
| Species: | E. torreyi | 
| Binomial name | |
| Epilobium torreyi | |
| Synonyms | |
| Boisduvalia stricta | |
Epilobium torreyi is a species of flowering plant in the evening primrose family known by the common names Torrey's willowherb and brook spike-primrose. It is native to western North America from British Columbia to California, where it grows in many types of habitat, often in moist areas. It is a hairy annual herb producing a narrow, upright stem often exceeding half a meter tall lined with narrow lance-shaped leaves. The hairy, glandular inflorescence bears tiny white or pink flowers. They are usually cleistogamous, remaining closed and self-pollinating. The fruit is a capsule up to about a centimeter long.
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