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

Carex concinnoides Mack.
northwestern sedge
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Eileen Brown  Email the photographer   (Photo ID #29503)

E-Flora BC Static Map
Distribution of Carex concinnoides
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Perennial, loosely tufted herb from slender, scaly rhizomes; stems 15-35 cm tall, from shorter than to longer than the leaves.
Sheaths reddish-tinged, the lower ones bladeless and thread-like; blades 6 to 10 per stem, flat or somewhat channeled, gradually tapering to the tips, 2-5 mm wide.
Spikes 2 or 3, the terminal one linear, 8-22 mm long, with male flowers, the lower 1 or 2 spikes linear to cylindrical, 5-10 mm long, unstalked or short-stalked, with female flowers, erect; bracts subtending the female spikes reduced to awn-tipped sheaths.
Perigynia broadly egg-shaped, 2.5-3 mm long, 1.2-1.5 mm wide, light green, 3-angled, densely hairy, obscurely several-nerved, crowded, erect, short-stalked, the beaks bidentate, about 0.5 mm long or less; female scales narrowly egg-shaped, brown, with wide translucent margins, slightly longer to slightly shorter than the perigynia; stigmas 4, rarely 3; achenes 3-angled, 2-5 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to dry forests, rocky slopes and clearings in the lowland and montane zones; common in SC and SE BC east of the Coast-Cascade Mountains, less frequent northward to 56degreeN, rare on the coast; E to SW AB and S to MT, ID and N CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Carex concinnoides

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) 170 1316 2375
Slope Gradient (%) 0 23 140
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 195 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 7
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: AT(2), BWBS(2), ESSF(306), ICH(119), IDF(567), MS(412), PP(44), SBPS(79), SBS(20)


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.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References