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

Juncus parryi Engelm.
Parry's rush
Juncaceae (Rush family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #46934)

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Distribution of Juncus parryi
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Species Information

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Perennial tufted herb from short rhizomes; stems wiry, erect, 10-40 cm tall.
Basal, short, nearly circular in cross-section, tapered, the uppermost of the basal sheaths with well-developed blades 2-7 cm long.
Inflorescence a subterminal, loose head with 1 to 4 flowers, appearing as if on the side of the stem; perianth segments green to brown, subequal, pointed, 5-7 mm long; stamens 6; anthers about 1.5 mm long, shorter than the filaments; involucral bracts 2-5 cm long, cylindrical, resembling a continuation of the stem.
Capsules, pointed, about the same length as the perianth segments; seeds spindle-shaped, 0.6 mm long, with long, tail-like appendages at each end.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Blooming Period:
Mid Summer
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Habitat / Range

Dry meadows and rocky slopes in the subalpine and alpine zones; frequent in BC south of 55degreeN, rare W of the Coast-Cascade Mountains; E to AB and S to CO, UT, NV and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Juncus parryi

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) 34 2091 2500
Slope Gradient (%) 0 34 250
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
15 166 340
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 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: AT(58), BAFA(1), ESSF(127), ICH(2), IMA(4), SBS(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