Species Details

Epilobium oreganum

Oregon fireweed

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Photo of Epilobium oreganum
© 2015 Steve Matson
Photo of Epilobium oreganum
© 2021 Scot Loring
Photo of Epilobium oreganum
©2013 Sierra Pacific Industries
Scientific Name:
Epilobium oreganum Greene
Common Name:
Oregon fireweed
Family: Onagraceae
Element Code: PDONA060P0
USDA Plants Symbol: EPOR
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Jun-Sep
500 - 2240 meters
1640 - 7350 feet
General Habitat:
  • Bogs and fens
  • Lower montane coniferous forest
  • Meadows and seeps
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Mesic
Unable to confirm many historical occurrences on Shasta-Trinity NF; is it more common elsewhere? Threatened by logging and grazing. Known from fewer than 1000 plants at about twenty localities in OR, where candidate for state listing. See Pittonia 1:255 (1888) for original description.
Total Occurrences: 62
Element Occurrence Ranks:
4 19 2 0 0 37
Occurrence Status:
Historical >20 Years 34
Recent <=20 Years 28
Presumed Extant 62
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Glenn (GLE), Humboldt (HUM), Mendocino (MEN), Shasta (SHA), Siskiyou (SIS), Tehama (TEH), Trinity (TRI)
Quads: Name (Quad Code)
O'brien -rename- (4212316), Takilma (4212315), Board Camp Mtn. (4012366), Broken Rib Mtn. (4112386), Buck Rock (3912288), Buckhorn Bally (4112287), Caribou Lake (4112218), Chicken Hawk Hill (4112214), Chimney Rock (4112356), City of Mount Shasta (4112233), Covington Mill (4012287), Denny (4012384), Dunsmuir (4112223), Forest Glen (4012333), Grouse Mtn. (4012376), Hoosimbim Mtn. (4012258), Hyampom Mtn. (4012364), Leech Lake Mtn. (3912381), Maple Creek (4012377), Marble Mountain (4112352), Mendocino Pass (3912278), Mount Eddy (4112234), Naufus Creek (4012343), Plaskett Meadows (3912267), Polar Bear Mtn. (4112385), Pony Buck Peak (4012331), Rush Creek Lakes (4012278), Siligo Peak (4012288), Sims Mountain (4012365), Smoky Creek (4012332), Somes Bar (4112344), Tangle Blue Lake (4112226), Tish Tang Point (4112315), Trinity Center (4012286), Trinity Dam (4012277), Trinity Mtn. (4112314), Ukonom Mtn. (4112354), Whisky Bill Peak (4112215), Wildwood (4012341), Ycatapom Peak (4112217)
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.


Presumed Extant
Counties   Quads