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

Carex inops L.H. Bailey
long-stoloned sedge (long-stolon sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #11272)

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Distribution of Carex inops
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Species Information

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Perennial, tufted herb from slender, creeping, branched rhizomes; stems (10) 20-50 cm tall, clustered, usually longer than the leaves, reddish-brown tinged at the bases.
Sheaths tight, breaking into threads at the bases; blades flat, channeled towards the base, 5 to 10 per stem, the margins somewhat turned in, borne on the lower 1/3 of the stem, 1-3 mm wide, the lower ones slightly reduced.
Spikes 2 to 4, the terminal one 1-2.5 cm long, the stalks 0.8-10 mm long, with many male flowers, the lower spikes 1 to 3, with female flowers, unstalked to short-stalked, erect; bracts subtending the lowest spike leaflike, sheathless or short-sheathing, shorter than the inflorescence, the others short, inconspicuous.
Perigynia broadly egg-shaped to nearly globe-shaped, 2.5-4.5 mm long, 2-2.3 mm wide, dull green to straw-coloured, convex, finely short-hairy, with 2 prominent marginal nerves, the bases short-stalked, the beaks 0.5-1.5 mm long, bidentate; female scales egg-shaped, rounded to tapered, slightly longer to somewhat shorter than the perigynia, straw-coloured to brownish, with lighter midribs, with translucent margins; stigmas 3; achenes 3-angled, with convex sides above, smooth, 1.8-2.5 mm long.
Two subspecies occur in BC :

1. Lower female spike elongate, short-stalked, its bract often short-sheathing; stalks of the male spike 4-10 mm long.................... ssp. inops

1. Lower female spike short, unstalked, its bract sheathless; stalks of the male spike 0.8-5 mm long.................... ssp. heliophila (Mack.) Crins

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry oak woodlands, meadows and rock outcrops in the lowland, montane and steppe zones; ssp. inops - infrequent in SW and SC BC; ssp. heliophila - infrequent in NE BC; ssp. inops - S to CA; ssp. heliophila - E to ON and S to IN, MO, OK, NM and UT.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Carex inops

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) 152 235 285
Slope Gradient (%) 0 36 105
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
19 189 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 3
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: CDF(6)

Ecological Indicator Information

A shade-intolerant, submontane to montane, Pacific North American sedge. Occurs in maritime to submaritime summer-dry cool mesothermal climates on moderately dry to fresh, nitrogen-medium soils. Sporadic on water-shedding, often disturbed, sites. Characteristic of grassy communities and open­canopy, young-seral, Douglas-fir forests.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)


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 cool mesothermal.

Taxonomic and Nomenclatural Links

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General References