Taxon  Report   3019 
Epilobium torreyi  (S. Watson) Hoch & P. H. Raven
Narrow boisduvalia,  Narrow leaved boisduvalia, Torrey's willowherb
Epilobium torreyi
© 2004 Norman Jensen
More 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 and 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
Genus: Epilobium
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 + JM93
Alternate Names:
(according to)

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 CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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:   (Accessed: Jul 19, 2018).

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