Carex eburnea Boott
bristle-leaved sedge (bristleleaf sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants


© Bryan Kelly-McArthur     (Photo ID #85519)


E-Flora BC Static Map

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

Species Information

Perennial, tufted herb from long rhizomes; stems 10-35 cm tall, arising singly or a few together, longer than the leaves, reddish-tinged at the bases.
Sheaths tight; blades 3 to 6 per stem, in-rolled, smooth, borne on the lower 1/3 of the stems, less than 0.5 mm wide, the lower ones slightly reduced.
Spikes 3 to 5, the terminal one stalked, 4-8 mm long, with male flowers, the lower spikes 2 to 4, erect, 2- to 6-flowered, with female flowers, long-stalked, the stalks 6-15 mm long; bracts subtending the female spikes tubular-sheathing, 4-6 mm long, bladeless.
Perigynia egg-shaped to elliptical, 1.7-2 mm long, 0.7-1 mm wide, 3-angled, membranaceous, dark green to black, shining, finely nerved, 2-ribbed, smooth, the beaks short, cylindrical, 0.2-0.3 mm long, translucent at the tips; female scales egg-shaped and pointed to rounded at the tips, shorter than the perigynia, whitish to yellowish-green or pale brown, with greenish midribs and translucent margins; stigmas 3; achenes 3-angled, with thicker angles and concave sides, sharp-pointed, smooth, 1.2-1.4 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.


Ecological Framework for Carex eburnea

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)
1034 664 1324
Slope Gradient (%)
6 0 45

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

255 30 320
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 0 6
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

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

BWBS(3), IDF(3), MS(5), SWB(1)

Habitat and Range

Dry, often calcareous, gravelly or rocky sites in the montane zone; frequent throughout E BC (Rocky Mountains); N to AK, YT and NT, E to NF and S to ME, PA, NC, GA, AL, TX and CO.

SourceThe Illustrated Flora of British Columbia