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Montana Field Guide

Montana Field Guides

Lake Tahoe Sedge - Carex tahoensis

Status Under Review

Global Rank: G5
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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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 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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat

References
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Citation for data on this website:
Lake Tahoe Sedge — Carex tahoensis.  Montana Field Guide.  .  Retrieved on , from