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Montana Field Guide

Montana Field Guides

Lake Tahoe Sedge - Carex tahoensis

Status Under Review
Native Species

Global Rank: G5
State Rank: S3S4

Agency Status


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General Description
Densely caespitose. Stems erect, 15–30 cm. Leaves basal and cauline; blades 1–3 mm wide. Inflorescence of 4 to 6 sessile, overlapping spikes; lowest bract inconspicuous. Spikes 9–13 mm long, all similar; female flowers above male. Perigynia erect, green to brown, narrowly ovate, convex, wing-margined, ca. 5.5 × ca. 2 mm, tapered to a serrulate beak, 1–2 mm long; stigmas 2. Female scales bronze with wide hyaline margins, concealing the perigynia. Achene 2-sided, smaller than the perigynium (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Most reports of Carex xerantica for Montana are referrable here.

Range Comments
YT south to CA, UT and CO (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)


  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Web Search Engines for Articles on "Lake Tahoe Sedge"
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Citation for data on this website:
Lake Tahoe Sedge — Carex tahoensis.  Montana Field Guide.  .  Retrieved on , from