Carex geyeri Boott
elk sedge (Geyer's sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants


© Ryan Batten     (Photo ID #23797)


E-Flora BC Static Map

Distribution of Carex geyeri
Click here to view the full interactive map and legend

Species Information

Perennial, loosely tufted herb from branching rhizomes; stems 10-50 cm tall, equalling or shorter than the leaves.
Sheaths tight, blunt at the mouths, with short ligules; blades usually 2 per stem, flat, borne on the lower 1/3 of the stem, 1.5-3 mm wide, the margins rough.
Spikes solitary, with both female and male flowers, the male part linear with a few male flowers towards the tips, short-stalked above the 1 to 3, more or less remote, spreading female flowers, 15-25 mm long, 7-12 mm wide; bractless.
Perigynia egg-shaped, tapering to spongy bases, 5-7 mm long, 2.5-3.5 mm wide, greenish or brownish, smooth, 2-ribbed, abruptly short-stalked, the beaks short, scarcely bidentate; female scales lanceolate, longer and slightly wider than the perigynia, sharp-pointed or short-awned, greenish to brownish, the centres lighter, the margins broad, translucent; stigmas 3; achenes 3-angled, 3.5-4.5 mm long.

SourceThe Illustrated Flora of British Columbia


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.

USDA Species Characteristics

Flower Colour:
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present from Spring to Summer
Source:  The USDA


Ecological Framework for Carex geyeri

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)
1826 534 2394
Slope Gradient (%)
47 0 100

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

169 20 325
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 1 5
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

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

AT(18), ESSF(17), MS(7), PP(2)

Habitat and Range

Dry meadows and open forests in the montane to alpine zones; rare in SE BC; E to SW AB and S to CO, UT, NV and CA.

SourceThe Illustrated Flora of British Columbia