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

Carex loliacea L.
ryegrass sedge
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #29858)

E-Flora BC Static Map
Distribution of Carex loliacea
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.



General:
Perennial, loosely tufted herb with elongated stolons; stems 20-40 cm tall, about as long as the leaves or longer.
Leaves:
Sheaths tight; blades numerous, borne on the lower part of the stem, 1-2.5 mm wide, flat.
Flowers:
Spikes 2 to 5, widely separated on the top of the stem in a 3- to 5-cm long, narrow, interrupted head, occasionally with a few spikes separate below, egg-shaped, many-flowered, 5-8 mm long, ascending, with both female and male flowers, the female flowers towards the tips, the male flowers inconspicuous; lowermost bract awnlike, about 0.5-1 cm long; upper bracts reduced.
Fruits:
Perigynia narrowly elliptical, 2.5-3 mm long, 0.6-0.8 mm wide, pale green, dark green or brownish, minutely whitish-dotted, biconvex, smooth, finely nerved, unstalked, beakless; female scales egg-shaped, covering about 1/2 of the perigynia, pointed, whitish-green, with green midribs; stigmas 2; achenes lens-shaped, 1.2-1.7 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Marshes, streambanks, fens and wet forests in the montane zone; infrequent in BC north of 51degreeN; circumpolar, N to AK, YT, and NT and E to ON; Eurasia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Carex loliacea

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) 425 933 1840
Slope Gradient (%) 0 2 23
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
6 5 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 6 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
36
Modal BEC Zone Class
SBS
All BEC Zones (# of stations/zone) species was recorded in: BWBS(4), ESSF(5), ICH(8), MS(1), SBS(17)

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