Page authors: Don Knoke, David Giblin
Juncus articulatus ssp. articulatus
jointed rush, jointleaf rush

Distribution: Distributed widely throughout Washington; southern British Columbia south to California, in scattered locations east to the Atlantic Coast.

Habitat: Wet places, from tidelands to streams or lake margins in the mountains.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Tufted perennial, the stems clustered on short rhizomes, 15-50 cm. tall.


Leaves alternate, 1-3 per stem, the blades terete, with prominent partitions; leaf bases sheathing, with rounded auricles.


Inflorescence terminal, 2-15 cm. long, exceeding the involucral bract, the branches spreading; heads numerous, small, 6- to 12-flowered; perianth usually deep brown, 2.5-3 mm. long, the 6 segments equal, lanceolate and slightly acuminate; stamens 6.


Capsule brown, longer than the perianth, conic-ovoid, tapered to a short projection.

Accepted Name:
Juncus articulatus L. ssp. articulatus
Publication: Sp. Pl. 1: 327. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Juncus articulatus ssp. articulatus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Juncus articulatus ssp. articulatus checklist entry.

E-Flora BC: Juncus articulatus ssp. articulatus atlas page.

CalPhotos: Juncus articulatus ssp. articulatus photos.

USDA Plants: Juncus articulatus ssp. articulatus information.

37 photographs:
Group by