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Montana Field Guide

Montana Field Guides

Different-nerve Sedge - Carex epapillosa
Other Names:  Carex heteroneura var. epapillosa, Carex atrata var. erecta

Native Species

Global Rank: G5T5
State Rank: S4S5

Agency Status
MNPS Threat Rank:
C-value: 5

External Links

General Description
Caespitose. Stems erect, 20–70 cm. Leaves basal and lower-cauline; blades 3–6 mm wide. Inflorescence of 3 to 6 short-pedunculate, erect to ascending spikes forming a loose cluster. Spikes 1–2 cm long, all similar; male flowers basal on uppermost spike, otherwise all female. Perigynia erect, coppery with green glabrous margins, elliptic to obovate, 3–4 mm long; the beak 0.3–0.5 mm long; stigmas 3. Female scales blackish, often with thin, hyaline margins, lanceolate, much narrower than the perigynia. Achene 3-sided, much smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

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

Observations in Montana Natural Heritage Program Database
Number of Observations: 7

(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)


  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Different-nerve Sedge — Carex epapillosa.  Montana Field Guide.  .  Retrieved on , from