E-Flora BC: Electronic Atlas of the Flora of British Columbia

Carex scopulorum var. bracteosa T. Holm (L.H. Bailey) F.J. Herm.
Holm's Rocky Mountain sedge (mountain sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #53145)

E-Flora BC Static Map
Distribution of Carex scopulorum var. bracteosa
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Species Information

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Perennial, clumped herb from short rhizomes; stems triangular with rough edges, 10-65 cm tall, exceeding the leaves.
Sheaths tight, short; blades flat, well distributed along the stem, 3-6 mm wide, the lower ones reduced.
Spikes 3 or 4, the terminal spike with male flowers, the lower spikes 2 or 3, with female flowers (sometimes with male flowers at the tips), unstalked or with short stalks, 0.5-2.5 cm long, erect; lowermost bract subtending the spikes scalelike, sheathless, with black ear-shaped lobes, the upper ones reduced.
Perigynia broadly egg-shaped, 2-4 mm long, 1.2-2.3 mm wide, brownish-green, 3-angled, the angles rounded, smooth to somewhat wrinkled, beakless; female scales egg-shaped, shorter or longer than the perigynia, brownish-red to purplish-black, with lighter 3-nerved centres and translucent margins; stigmas 2; achenes lens-shaped, 1.2-1.7 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Shorelines, streambanks and wet to moist meadows in the montane to alpine zones; rare in SC BC; E to SW AB and S to CO, AZ and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Carex scopulorum var. bracteosa

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 1730 1735 1740
Slope Gradient (%) 7 8 10
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
18 36 55
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: ESSF(2)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Carex campylocarpa T. Holm
Carex campylocarpa subsp. affinis Maguire & A. Holmgren
Carex gymnoclada T. Holm
Carex scopulorum var. scopulorum T. Holm

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References