Taxon Report

Carex tahoensis Smiley

Tahoe sedge

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Taxon Summary

Carex tahoensis, commonly known as Tahoe sedge, is a perennial rhizomatous herb in the Cyperaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, and Subalpine coniferous forest (rocky), growing at elevations from 2835 to 3810 meters. Carex tahoensis is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Carex tahoensis Smiley
Common Name:	Tahoe sedge
Family:	Cyperaceae
Element Code:	PMCYP03DG0
USDA Plants Symbol:	CATA
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Jul-Aug	Jul-Aug
Elevation:	2835-3810 (9300-12500)
General Habitats:	Alpine boulder and rock field, Subalpine coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G5
State Rank:	S4
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
El Dorado (ELD), Fresno (FRE), Inyo (INY), Madera (MAD), Mariposa (MPA), Mono (MNO), Tuolumne (TUO)
Quads: Name (Quad Code)
Dunderberg Peak (3811913), Emerald Bay (3812081), Koip Peak (3711972), Mount Dana (3711982), Mt. Clarence King (3611874), Mt. Goddard (3711816), Mt. Thompson (3711825), North Palisade (3711815), Tioga Pass (3711983), Vogelsang Peak (3711973)

Threat List Data from the CNDDB


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

Notes



See University of California Publications in Botany 9:119 (1921) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 11 April 2025].