Carex bicolor Bellardi ex All.
two-coloured sedge (twocolor sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

Photograph

© Ryan Batten     (Photo ID #53022)


Map

E-Flora BC Static Map

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

Species Information

General:
Perennial, loosely tufted herb from short rhizomes; stems 5-30 cm tall, longer than the leaves.
Leaves:
Sheaths tight; blades 3 to 6 per stem, flat, borne on the lower 1/3 of the stem, 1-2 mm wide, the lower ones reduced.
Flowers:
Spikes 3 to 5, 4-10 mm long, borne close together at the top of the stems, with female flowers, except the terminal spike with a few male flowers at the base, short-stalked; bracts subtending the female spikes with short sheaths, scalelike, the lowermost barely reaching the top of the inflorescence and with blackish earlike lobes at the top of the sheath.
Fruits:
Perigynia egg-shaped, 2-3 mm long, 0.7-1 mm wide, inflated, dull green to bluish-white, nerveless, with a powdery surface, beakless; female scales egg-shaped, pointed to rounded at the tips, shorter and narrower than the perigynia, purplish-black to reddish-brown, with greenish midribs and translucent margins; stigmas 2; achenes lens-shaped, 1.2-1.4 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 bicolor

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)
359 33 685
Slope Gradient (%)
9 3 28

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

77 20 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 2 7
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
6
Modal BEC Zone Class
BAFA

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

BAFA(2), ESSF(1), SBS(1)

Habitat and Range

Moist to wet meadows and shorelines in the montane to alpine zones; rare in N and C BC; circumpolar, N to AK, YT and NT and E to NF; Greenland, Iceland, Eurasia.

SourceThe Illustrated Flora of British Columbia