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Epilobium oreganum
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Oregon Fireweed
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Epilobium oreganum
  

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About Oregon Fireweed (Epilobium oreganum) Epilobium oreganum is an uncommon species of flowering plant in the evening primrose family known by the common names Grants Pass willowherb and Oregon fireweed (though it is not a true fireweed). It is native to southern Oregon and northern California, where it is historically known mostly from the Klamath Mountains. It is currently confirmed to exist only in Josephine County, Oregon, and Trinity County, California, where it grows in boggy areas on serpentine soils. It is a perennial herb growing up to a meter in height with thin, hairless stems. The red-veined leaves are oval to lance-shaped and up to 9 centimeters long. The inflorescence bears flowers with pink petals just over a centimeter long and a protruding pistil. The fruit is a hairy, glandular capsule up to 4. 5 centimeters long.
Plant Description
Plant Type
Perennial herb

Max. Height
1.3 - 3.3 ft (0.4 - 1 m)

Flower Color
Pink, Red

Native Status
Natural Setting
Elevation ?
286' - 10807'

Annual Precip. ?
22.2" - 153.3"

Summer Precip. ?
0.44" - 5.87"

Coldest Month ?
25.0° F - 45.7° F

Hottest Month ?
47.3° F - 71.6° F

Humidity ?
0.82 vpd - 21.68 vpd

Landscaping Information
Common uses
Bird Gardens, Hummingbird Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Grants Pass Willowherb


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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