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

Juncus canadensis J. Gay ex Laharpe
Canadian rush
Juncaceae (Rush family)

Introduction to Vascular Plants

© Frank Lomer  Email the photographer   (Photo ID #27575)

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Distribution of Juncus canadensis
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Species Information

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General:
Perennial, tufted herb from short rhizomes; stems numerous, erect, 40-90 cm tall.
Leaves:
Located on the lower part of the stem, nearly circular in cross-section, tapered, stiff, with prominent complete cross-walls; sheaths open, with short, rounded, ear-shaped lobes.
Flowers:
Inflorescence terminal, conic, as wide as long to twice as long as wide, 5-20 cm long, the heads with more than 10 flowers, the branches spreading; perianth segments greenish-brown, 3.5-4.5 mm long, pointed, the inner shorter than the outer; stamens 6; anthers 0.7-1 mm long, shorter than the filaments.
Fruits:
Capsules, pointed, about as long as the perianth segments or only slightly longer; seeds spindle-shaped, about 0.4 mm long, with long, tail-like appendages on both ends that are more than 1/2 of the seed bodies.
Notes:
This species was erroneously treated as J. brevicaudatus in Ceska (1994).

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

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

Habitat / Range

Wet meadows, peat bogs, lakeshores, and riverbanks in the lowland zone; rare in SW BC; introduced from eastern North America.

Source: The Illustrated Flora of British Columbia

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.

Synonyms and Alternate Names

Juncus canadensis var. euroauster Fernald
Juncus canadensis var. sparsiflorus Fernald

Taxonomic and Nomenclatural Links

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Related Databases

General References