Blooms: Late May - August
Habit: herb
Duration: perennial
Origin: Native
Distribution: Mostly west of the Cascades, British Columbia south to California, east to southwest Idaho and Arizona.
Habitat: Ditches, lake margins, meadows and other wet places.
Habit: herb
Duration: perennial
Origin: Native
Distribution: Mostly west of the Cascades, British Columbia south to California, east to southwest Idaho and Arizona.
Habitat: Ditches, lake margins, meadows and other wet places.
Species Description:
General: Tufted perennial without rhizomes, the stems 4-8 dm. tall.
Leaves: Leaves alternate, semi-terete, hollow, with prominent partitions; leaf bases sheathing, the margins of the sheaths free at the tip, forming rounded auricles.
Flowers: Inflorescence terminal, 5-12 cm. long, longer than the involucral bract, with 5-20 heads, the heads 5-8 mm. broad and 10- to 20-flowered; perianth tawny or greenish-brown, 3-3.5 mm. long, the 6 segments subequal, lanceolate-acuminate; stamens 3; style 1 mm. long.
Fruits: Capsule equal to the perianth, narrowly ovoid, 3-angled, tapered to the tip.
General: Tufted perennial without rhizomes, the stems 4-8 dm. tall.
Leaves: Leaves alternate, semi-terete, hollow, with prominent partitions; leaf bases sheathing, the margins of the sheaths free at the tip, forming rounded auricles.
Flowers: Inflorescence terminal, 5-12 cm. long, longer than the involucral bract, with 5-20 heads, the heads 5-8 mm. broad and 10- to 20-flowered; perianth tawny or greenish-brown, 3-3.5 mm. long, the 6 segments subequal, lanceolate-acuminate; stamens 3; style 1 mm. long.
Fruits: Capsule equal to the perianth, narrowly ovoid, 3-angled, tapered to the tip.
Accepted Name:
Juncus acuminatus Michx.Synonyms:
Juncus acuminatus Michx. var. legitimus Engelm.
Juncus pondii A. W. Wood
Treated in Flora of the PNW as:
Juncus acuminatus
Additional Resources:
PNW Herbaria Specimens: View list of Juncus acuminatus specimens in the Consortium of Pacific Northwest Herbaria database.
WTU Herbarium Specimens: View list of Juncus acuminatus specimens in the WTU Herbarium database.
Washington Flora Checklist: Juncus acuminatus treatment.
E-Flora BC: Juncus acuminatus atlas page.
CalPhotos: Juncus acuminatus images.
USDA Plants Database: Juncus acuminatus.
Fred Weinmann, 1991
Fred Weinmann, 1991
|
©2013 Burke Museum of Natural History and Culture. All Rights Reserved. Box 353010, University of Washington, Seattle, WA 98195-3010, Phone: 206-543-5590. On the UW campus at 17th Avenue NE and NE 45th Street. |
 WA Native Plant Society |
