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

Photograph

© Ryan Batten     (Photo ID #53145)


Map

E-Flora BC Static Map

Distribution of Carex scopulorum var. bracteosa
Click here to view the full interactive map and legend

Species Information

General:
Perennial, clumped herb from short rhizomes; stems triangular with rough edges, 10-65 cm tall, exceeding the leaves.
Leaves:
Sheaths tight, short; blades flat, well distributed along the stem, 3-6 mm wide, the lower ones reduced.
Flowers:
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.
Fruits:
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.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

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

Avg

Min

Max

Elevation (metres)
1735 1730 1740
Slope Gradient (%)
8 7 10

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

36 18 55
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Class
D
# of field plots
 species was recorded in:
2
Modal BEC Zone Class
ESSF

All BEC Zones (# of stations/zone) species was recorded in

ESSF(2)

Habitat and 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.

SourceThe Illustrated Flora of British Columbia

Synonyms

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