CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record epilobium_siskiyouense - Thu, Dec. 2, 2021, 05:22 ET b
Epilobium siskiyouense
common nameSiskiyou fireweed
CalPhotos image
more photos
Julie Kierstead Nelson © 2001 Julie Kierstead Nelson  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 1B.3
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.3: Not very endangered in California
state rank
S3      ranking system key
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (19):
Bully Choop Mountain (649D) 4012257, Covington Mill (667A) 4012287, Siligo Peak (667B) 4012288, Seven Lakes Basin (682B) 4112224, Chicken Hawk Hill (682C) 4112214, Mumbo Basin (683A) 4112225, Billys Peak (684A) 4112227, Deadman Peak (684B) 4112228, Caribou Lake (684C) 4112218, Dees Peak (686D) 4112313, Mount Eddy (699C) 4112234, Scott Mountain (700C) 4112236, South China Mountain (700D) 4112235, Marble Mountain (719C) 4112352, Boulder Peak (719D) 4112351, Dutch Creek (736A) 4112381, Kangaroo Mountain (736B) 4112382, Figurehead Mountain (737A) 4112383, Preston Peak (738D) 4112375
quad data info

Counties, states, regions:
Shasta (SHA), Siskiyou (SIS), Trinity (TRI), Oregon (OR)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Alpine boulder and rock field (AlpBR)
•Subalpine coniferous forest (SCFrs)
•Upper montane coniferous forest (UCFrs)/rocky, serpentinite
blooming period Jul-Sep  
elevation range1700 - 2500 meters
Known in CA from fewer than twenty occurrences. Candidate for state listing in OR. See North American Flora II 5:205 (1965) for original description, and Madroņo 27(3):146 (1980) for revised nomenclature.
full nameEpilobium siskiyouense (Munz) Hoch & Raven
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  EPSI2 Element Code  PDONA06100
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Thu, Dec. 2, 2021 from

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