CNPS Inventory Plant Detail

Epilobium siskiyouense

Common Name:	Siskiyou fireweed
Family:	Onagraceae
Synonyms:
Element Code:	PDONA06100
Full Name:	Epilobium siskiyouense (Munz) Hoch & Raven
USDA PLANTS Symbol:	EPSI2

Biology
Lifeform: perennial herb Blooming Period: July - September Habitat: rocky, serpentinite. • Alpine boulder and rock field • Subalpine coniferous forest • Upper montane coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.3 Rare, threatened, or endangered in California and elsewhere .3: Not very endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G3 G3: Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 45
Element Occurrence Ranks:

A B C D X U

9 8 0 0 0 28

Population Status:

Historic >20 yrs	Recent <=20 yrs
34	11

Presence:

Present Extant	Possibly Extirpated	Extirpated
45	0	0

Notes
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 Madroño 27(3):146 (1980) for revised nomenclature. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1980-01-01 Last Update: 2010-03-15

Location

Elevation: 1700 - 2500 meters

California Endemic: no

States: California, Oregon

California Counties and Islands: name (code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)

Quads: name (DWR code) USGS code
Bully Choop Mtn. (649D) 40122E7, Covington Mill (667A) 40122H7, Siligo Peak (667B) 40122H8, Seven Lakes Basin (682B) 41122B4, Mumbo Basin (683A) 41122B5, Billys Peak (684A) 41122B7, Deadman Peak (684B) 41122B8, Caribou Lake (684C) 41122A8, Dees Peak (686D) 41123A3, Mount Eddy (699C) 41122C4, Scott Mountain (700C) 41122C6, South China Mtn. (700D) 41122C5, Boulder Peak (719D) 41123E1, Dutch Creek (736A) 41123H1, Kangaroo Mtn. (736B) 41123H2, Figurehead Mtn. (737A) 41123H3, Preston Peak (738D) 41123G5

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

600

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-122.875,41.125