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Montana Field Guide

Montana Field Guides

Holm's Rocky Mountain Sedge - Carex scopulorum

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 8

External Links

General Description
Rhizomatous. Stems erect, 8–70 cm. Leaves basal and/or cauline; blades 2–6 mm wide. Inflorescence of 3 to 5 overlapping spikes; the lowest bract shorter than the inflorescence. Spikes ascending to erect; the uppermost male; the lower female, subsessile to short-pedunculate, 8–25 mm long, cylindric. Perigynia erect, green to tan, brown above, lanceolate to suborbicular, veinless, glabrous, papillose, 2–3 mm long with a minute beak. Female scales acute to rounded, almost completely blackish, narrower and subequal to the perigynia. Achene 2-sided, smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are varieties bracteosa (L.H. Bailey) F.J. Herm. and prionophylla (T.
Holm) L.A. Standl.

Species Range
Montana Range


Range Comments
YT south to CA, 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: 200

(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)


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Citation for data on this website:
Holm's Rocky Mountain Sedge — Carex scopulorum.  Montana Field Guide.  .  Retrieved on , from