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

Carex lyngbyei Hornem.
Lyngbye's Sedge (Inland Sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Brian Klinkenberg  Email the photographer   (Photo ID #3757)

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Distribution of Carex lyngbyei
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Species Information

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Perennial herb from long, creeping rhizomes; stems 15-150 cm tall, arising singly or in small clumps, longer than the leaves.
Sheaths tight; ligules as long as wide; blades 4 to 8 per stem, flat, the margins rolled-under, borne on the lower 1/2 of the stem, 2-12 mm wide, the lower ones reduced, persistent.
Spikes 4 to 7, the terminal 2 or 3 linear, 1.5-5 cm long, long-stalked, with many male flowers, the lower spikes 2 to 4, narrowly cylindrical, 1.5-5 cm long, with female flowers, or some with male flowers above the female flowers, short-stalked, usually spreading or nodding; bracts subtending the lowest spike leaflike, sheathless or short-sheathing, the lowest longer than the inflorescence.
Perigynia elliptical to broadly egg-shaped, 2.5-3.5 mm long, 1-1.2 mm wide, yellowish-green or brown, somewhat inflated, smooth, shiny, 2-ribbed, the bases round, short-stalked, the beaks short, 0.1-0.3 mm long, entire or nearly so; female scales lanceolate to egg-shaped, long-pointed or awned, narrower than and exceeding the perigynia, purplish-brown, with 3-nerved, lighter centres and narrow, translucent margins; stigmas 2; achenes lens-shaped, minutely pimpled, sometimes with deep constrictions, 1.9-2.4 mm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Fruit/Seed characteristics:
Colour: Brown
Present over the Summer

Habitat / Range

Salt marshes, estuaries and wet saline meadows in the lowland zone; common along the coast; amphiberingian, N to AK and S to CA; coastal E Asia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Carex lyngbyei

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) 0 10 205
Slope Gradient (%) 0 3 55
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
54 259 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 6 8
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(38), CWH(64)


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.

Synonyms and Alternate Names

Carex lyngbyei subsp. cryptocarpa

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References