Calflora, a 501c3 non-profit
Distribution by County   2997    
Epilobium glaberrimum  Barbey  ssp. fastigiatum  (Nutt.) Hoch & P. H. Raven
Cluster stemmed willowherb,   Glaucus willowherb,   Smooth willowherb
Epilobium glaberrimum ssp. fastigiatum is a perennial herb that is native to California, and also found elsewhere in western North America.

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 11/28/2023).