Calflora
Taxon  Report   3019    
Epilobium torreyi  (S. Watson) Hoch & P. H. Raven
Narrow boisduvalia,  Narrow leaved boisduvalia, Torrey's willowherb
Epilobium torreyi
© 2004 Norman Jensen
Photos from
CalPhotos / Calflora
Epilobium torreyi
© 2012 Aaron Arthur
Epilobium torreyi
© 2004 Carol W. Witham
Epilobium torreyi, a dicot, is an annual herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Epilobium torreyi
© 2004 Norman Jensen
Family: ONAGRACEAE  
Genus: Epilobium
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities)

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN + PLANTS: Gayophytum strictum
ICPN + PLANTS: Boisduvalia stricta
ICPN: Boisduvalia torreyi
More information about  Epilobium torreyi
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (EPTO4)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 15, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.