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

Carex deflexa Hornem.
bent sedge (northern sedge; short-stemmed sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #29730)

E-Flora BC Static Map
Distribution of Carex deflexa
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Species Information

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General:
Perennial, loosely tufted herb from slender, creeping, branched rhizomes; stems 5-25 cm tall, densely clustered, longer than or sometimes equalling the leaves, purple-tinged at the bases.
Leaves:
Sheaths tight, persistent; blades flat, channeled above, smooth or somewhat rough, borne on the lower 1/3 of the stem, 1-2 mm wide, the lower ones slightly reduced.
Flowers:
Spikes 2 to 6, the terminal one unstalked or short-stalked, 2-5 cm long, with male flowers, the lower spikes few-flowered, with female flowers, unstalked to short-stalked, 2 to 4 of these borne near the male spike and 1 or more usually borne near the bases of the stems, erect; bracts subtending the female spikes leaflike, sheathless or short-sheathing, shorter than to 4 times as long as the male spike, longer than the inflorescence, the upper bracts reduced.
Fruits:
Perigynia elliptical to broadly egg-shaped, 2-3 mm long, 0.5-1.5 mm wide, greenish to straw-coloured, convex, finely short-hairy, with 2 prominent marginal nerves, the bases short-stalked, the beaks short and inconspicuous to slender and 0.4-0.7 mm long, bidentate; female scales egg-shaped and pointed on the upper perigynia to broadly lanceolate and awned on the lower perigynia, usually shorter and somewhat wider than the perigynia, purplish-brown, with lighter midribs and translucent margins; stigmas 3; achenes 3-angled, smooth, 1.5-2 mm long.
Notes:
Closely related to C. rossii, these two taxa are sometimes considered conspecific. In that case C. deflexa (the oldest name in the complex) is used in a broad sense (e.g., Taylor 1983).

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic meadows and forest openings in the montane and subalpine zones; frequent in BC east of the Coast-Cascade Mountains, infrequent on the coast; N to AK and YT, E to NF and S to MA and MI.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Carex deflexa

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

Minimum

Average

Maximum

Elevation (metres) 570 1377 2393
Slope Gradient (%) 9 46 91
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
60 207 300
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 5
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
10
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: ESSF(6), ICH(1), PP(3)

Climate

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