Taxon Report

Epilobium siskiyouense (Munz) Hoch & Raven

Siskiyou fireweed

Print Report


©2014 Julie Kierstead Nelson

  Classification
Scientific Name:
 Epilobium siskiyouense (Munz) Hoch & Raven
Common Name:
 Siskiyou fireweed
Family: Onagraceae
Element Code: PDONA06100
USDA Plants Symbol: EPSI2
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Jul-Sep Jul-Sep
Elevation: 1700-2500 (5580-8205)
General Habitats: Alpine boulder and rock field, Subalpine coniferous forest, Upper montane coniferous forest
Microhabitat: Rocky, Serpentine
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.3
Global Rank: G3
State Rank:
 S3
State List: None
Fed List: None
Other Status: BLM_S; SB_BerrySB
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 56
Element Occurrence Ranks:
   Excellent (A) 9
   Good (B) 9
   Fair (C) 1
   Poor (D) 0
   None (X) 0
   Unknown (U) 37

Location
California Endemic:  False
California Counties and Islands: Name (Code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Billys Peak (4112227), Boulder Peak (4112351), Bully Choop Mtn. (4012257), Caribou Lake (4112218), Chicken Hawk Hill (4112214), Covington Mill (4012287), Deadman Peak (4112228), Dees Peak (4112313), Dutch Creek (4112381), Figurehead Mtn. (4112383), Kangaroo Mtn. (4112382), Marble Mountain (4112352), Mount Eddy (4112234), Mumbo Basin (4112225), Preston Peak (4112375), Scott Mountain (4112236), Seven Lakes Basin (4112224), Siligo Peak (4012288), South China Mtn. (4112235), Ycatapom Peak (4112217)

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
19 34 %
Foot traffic/trampling 8 14%
Mining 4 7%
Road/trail construction/maint. 3 5%
Development 3 5%
Grazing 2 3%
Erosion/runoff 1 1%
Other 1 1%

Notes
Candidate for state listing in OR. See North American Flora II 5:205 (1965) for original description, and Madroño 27(3):146 (1980) for revised nomenclature.
Threats:
Taxonomy:

Selected References

USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].