Carex limosa L.
shore sedge (bog sedge; mud sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

Photograph

© Bryan Kelly-McArthur     (Photo ID #89647)


Map

E-Flora BC Static Map

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

Species Information

General:
Perennial herb from long, creeping rhizomes and rusty-reddish roots; stems 20-60 cm tall, arising singly or a few together, much longer than the leaves, usually reddish at the bases.
Leaves:
Sheaths tight, sometimes breaking into threads at the bases; blades 1 to 3 per stem, deeply channeled, borne on the lower 1/3 of the stem, 1-2 mm wide, the lower ones reduced.
Flowers:
Spikes 2 to 4, the terminal one linear, 1.5-2.7 cm long, long-stalked, with male flowers, the lower spikes 1 to 3, with female flowers, cylindrical, 1-2.5 cm long, slightly separate, long-stalked, nodding; bracts subtending the lowest spike leaflike, 2-10 cm long, sheathless or short-sheathing, shorter than the inflorescence, the others reduced.
Fruits:
Perigynia egg-shaped to elliptical, 2.3-4.2 mm long, 1.8-2 mm wide, green, somewhat compressed, densely pimpled, with 2 prominent marginal nerves and 4 to 7 other nerves on each face, short-stalked, beakless or short-beaked, the beaks cylindrical, 0.5-2 mm long; female scales egg-shaped to nearly globe-shaped, rounded to pointed or long-pointed, about as long as and as wide as the perigynia, light to dark brown, with lighter, 3-nerved centres; stigmas 3; achenes 3-angled, unstalked, smooth, 1.5-2.2 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.

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present from Spring to Summer
Source:  The USDA

Ecology

Ecological Framework for Carex limosa

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)
1032 7 2110
Slope Gradient (%)
2 0 65

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

352 2 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 1 8
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
388
Modal BEC Zone Class
SBS

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

BAFA(3), BWBS(29), CWH(7), ESSF(73), ICH(40), IDF(16), MH(4), MS(30), SBPS(21), SBS(140), SWB(6)

Habitat and Range

Bogs, fens and shorelines in the lowland, montane and subalpine zones; frequent throughout BC except absent on the Queen Charlotte Islands; circumpolar, N to AK, YT and NT, E to NF and S to NJ, PA, OH, IN, IL, IA, NE, NM, UT, NV and CA; Iceland, Eurasia.

SourceThe Illustrated Flora of British Columbia