Page author: David Giblin
Juncus tweedyi
narrow-panicled rush

Distribution: Occurring on both sides of the Cascades crest along the coast in Washington; British Columbia to Oregon, scattered eastward across North America to the Atlantic Coast.

Habitat: Often near cranberry farms, on sandy and peaty shores or ditches,

Flowers: June-August

Origin: Native in interior Washington, introduced along the coast.

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Wind


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Accepted Name:
Juncus tweedyi Rydb.
Publication: Mem. New York Bot. Gard. 1: 90. 1900.

Synonyms & Misapplications:
Juncus brevicaudatus (Engelm.) Fernald
Juncus canadensis J. Gay ex Laharpe var. brevicaudatus Engelm.
Juncus canadensis J. Gay ex Laharpe var. coarctatus Engelm.
Juncus canadensis J. Gay ex Laharpe var. kuntzei Buchenau
Juncus kuntzei (Buchenau) Vierh.
Additional Resources:

PNW Herbaria: Specimen records of Juncus tweedyi in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Juncus tweedyi checklist entry

OregonFlora: Juncus tweedyi information

E-Flora BC: Juncus tweedyi atlas page

CalPhotos: Juncus tweedyi photos

14 photographs:
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