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

Juncus covillei Piper
Coville's rush
Juncaceae (Rush family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #11517)

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Distribution of Juncus covillei
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Species Information

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Perennial herb from long creeping rhizomes; stems erect, 10-30 cm tall.
Located on the lower part of the stem, flat, stiff, lacking complete cross-walls.
Inflorescence of 1 to 6, terminal heads of 3 to 7 flowers, the flowers lacking bractlets; perianth segments brown, largely translucent-margined, 3-4 mm long, egg-shaped, pointed; stamens 6; anthers 0.9-1.4 mm long, about equal to the filaments; lowest bracts leaflike, longer than the flowers, upper bracts awnlike and shorter than the inflorescence.
Capsules, egg-shaped, notched, equal to or slightly longer than the perianth segments, dark brown; seeds barrel-shaped, about 0.3 mm long, lacking tail-like appendages.
The habit of this species is similar to J. falcatus. The most reliable identification character is the shape and size of seeds.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Lakeshores and gravel banks in the lowland zone; infrequent in SW BC; S to CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Juncus covillei

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) 207 301 395
Slope Gradient (%) 0 2 4
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
270 270 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 7 7
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: CWH(2)


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

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General References