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

Juncus falcatus E. Mey.
sickle-leaved rush (falcate rush)
Juncaceae (Rush family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #23863)

E-Flora BC Static Map
Distribution of Juncus falcatus
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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 cross-walls.
Inflorescence of 1 to 3 terminal heads of 5 to 15 flowers, the flowers lacking bractlets; perianth segments dark brown with wide green midribs, 4-6 mm long, egg-shaped, pointed or awned; stamens 6; anthers 1-1.6 mm long, about equal to the filaments; lowest bracts leaflike, longer than the inflorescence, the upper bracts awnlike and shorter than the inflorescence.
Capsules, egg-shaped, blunt or notched, equal to or slightly shorter than the perianth segments, dark; seeds wedge-like, angular, widest at the tips and narrowing to the bases, about 0.7 mm long, lacking tail-like appendages.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet rocky or sandy lakeshores and streambanks, upper tideflats and open soil in peat bogs in the lowland and montane zones; frequent in BC west of Coast-Cascade Mountains; amphiberingian, N to AK and S to CA; E Asia and Australia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Juncus falcatus

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) 0 122 290
Slope Gradient (%) 0 3 10
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
40 347 295
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 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(7)


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

Juncus falcatus var. falcatus E. Mey. [superfluous autonym]

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References