Taxon Details

Carex occidentalis

western sedge

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Taxon Summary:

Carex occidentalis, commonly known as western sedge, is a perennial rhizomatous herb in the Cyperaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, and Meadows and seeps, growing at elevations from 1645 to 3135 meters. Carex occidentalis is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Carex occidentalis Bailey
Common Name: western sedge
Family:	Cyperaceae
Element Code:	PMCYP039M0
USDA Plants Symbol:	CAOC2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Jun-Aug

Elevation:
1645 - 3135 meters
5395 - 10285 feet

General Habitats:

Lower montane coniferous forest
Meadows and seeps

Microhabitat Details:

Microhabitat:

Notes

Notes: Known in CA only from the San Bernardino, San Jacinto, and White Mountains. Endangered in ID. See Memoirs of the Torrey Botanical Club 1:14 (1889) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					8
A	B	C	D	X	U
0	0	0	0	0	8

Occurrence Status:
Historical >20 Years	8
Recent <=20 Years	0

Presence:
Presumed Extant	8
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Idaho (ID)*, Montana (MT)*, Nevada (NV), New Mexico (NM), South Dakota (SD), Texas (TX), Utah (UT), Wyoming (WY)

California Counties and Islands: Name (Code)
Los Angeles (LAX), Mono (MNO), Riverside (RIV), San Bernardino (SBD)

Quads: Name (Quad Code)
Big Bear Lake (3411628), Chris Flat (3811944), Crystal Lake (3411737), Moonridge (3411627), Mount San Antonio (3411736), Onyx Peak (3411626), San Jacinto Peak (3311676)

Notes:

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.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory