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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
C-value: 5

Agency Status


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

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

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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.
  • 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.
  • Web Search Engines for Articles on "Different-nerve Sedge"
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Citation for data on this website:
Different-nerve Sedge — Carex epapillosa.  Montana Field Guide.  .  Retrieved on , from