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Montana Field Guide

Montana Field Guides

Columbian Sedge - Carex aperta


Global Rank: G4
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

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General Description
Short-rhizomatous. Stems erect, 25–60 cm, loosely tufted. Leaves basal and cauline; blades 2–5 mm wide. Inflorescence of 3 to 5 well-separated spikes; the lowest bract equal to or smaller than the inflorescence. Spikes ascending; the uppermost 1 or 2 male; the lower female, 1–3 cm long, short-pedunculate, cylindrical. Perigynia ascending, coppery, suborbicular to obovate, veinless, glabrous, plump, 2–3 mm long with a tiny beak. Female scales acute to acuminate, dark brown with a pale midstripe and margins, longer but narrower than the perigynia. Achene 2-sided, partly filling the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
BC, AB, WA, OR, ID and MT(Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Marshes, wet meadows, shores of ponds, lakes, streams; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Columbian Sedge — Carex aperta.  Montana Field Guide.  .  Retrieved on , from