Taxon  Report   3009 
Epilobium oreganum  E. Greene
Grants pass willowherb,  Oregon fireweed

Epilobium oreganum
© 2008 Keir Morse
Epilobium oreganum, a dicot, is a perennial herb that is native to California and is also found outside of California, but is confined to western North America, Oregon.
It is included in the CNPS Inventory of Rare and Endangered Plants on list 1B.2 (rare, threatened, or endangered in CA and elsewhere).   7th Edition  /  8th Edition

 Interactive Distribution Map 

 Observation Hotline 
 (observation details + photos)

point, line, or polygon

one or more occurrences within a 7.5-minute quadrangle

 Plant Characteristics
 and Associations

Bloom Period
Epilobium oreganum
© 2004 Dean Wm. Taylor
Genus: Epilobium
Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Freshwater Wetlands, wetland-riparian
Habitat: bogs/fens [CNPS Inventory]
Wetlands:Occurs almost always under natural conditions in wetlands [U.S. Fish & Wildlife Service.]
AFFINITY to serpentine soil:   3.8 (broad endemic / strong indicator)   [Safford et al 2005]
Distribution by County 

Add an Observation of  Epilobium oreganum

Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

TJM2 + PLANTS: Epilobium exaltatum
 More information about  Epilobium oreganum
Location Suitability

Nursery / seed vendor availability from CNPLX
Commercial availability unknown.


Photos on CalPhotos / Google Images

website references on Google

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation. on the
International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Nov 25, 2015).

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