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Montana Field Guide

Montana Field Guides

Small-wing Sedge - Carex microptera
Other Names:  Carex festivella

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Densely caespitose. Stems erect, 15–90 cm. Leaves basal and cauline; blades 1–5 mm wide. Inflorescence of 4 to 10 sessile spikes densely clustered into a globose to ovoid head; lowest bract scale-like. Spikes 4–10 mm long, all similar; female flowers above male. Perigynia ascending, green to brown, narrowly ovate, flattened, wing-margined, 3–4.5 × 1–1.5 mm, the beak, 1–1.5 mm long, serrulate below, entire above; stigmas 2. Female scales brown sometimes with a pale midstripe and margins, shorter but nearly as wide as the perigynia. Achene 2-sided, much smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
YT south to CA, AZ, NM and SD (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 515

(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)

Moist to wet meadows, grasslands, shores of streams, lakes, occasionally open forest, pastures; valleys to alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Reinhart, D.P. 1990. Grizzly bear habitat use on cutthroat trout spawning streams in tributaries of Yellowstone Lake. M.Sc. Thesis. Bozeman, MT: Montana State University. 128 p.
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Citation for data on this website:
Small-wing Sedge — Carex microptera.  Montana Field Guide.  .  Retrieved on , from