Northern Prairie Wildlife Research Center


Home	About NPWRC	Our Science	Staff	Employment	Contacts	Common Questions	About the Site

Aquatic and Wetland Vascular Plants of the Northern Great Plains

61. Juncaceae, the Rush Family

1. Juncus L. -- Rush

6. Juncus canadensis Gay ex Laharpe

Coarse tufted perennial 3-9 dm tall, with stout, rigid culms. Leaves 3-4 per culm, terete, hollow, nodulose-septate, 1.5-3 mm wide when pressed; sheaths green or basal ones reddish, with narrow, membranous margins, prolonged as acute to rounded auricles 1-2 mm long. Inflorescence open or congested, 2-20 cm long, the branches ascending; glomerules few to many, containing 5-40 or more flowers, obpyramidal to hemispheric when relatively few-flowered, to subglobose when many-flowered. Flowers green to brown, (3)4-5 mm long; tepals lance-subulate, the inner slightly to distinctly longer than the outer; stamens 3. Capsules ovoid to oblong, 1-locular, equaling to strongly exceeding the inner tepals, abruptly tapered at the apex to an apiculate tip; seeds fusiform, 1.2-1.9 mm long including the white, membranous, taillike appendages at both ends, the body 1/2 or less the total length. Jul--Sep. Sandy shores, marshes and stream banks; rare, s SD and n NE; (Newf. and Que. to MN, s to GA, TN, LA and NE).
GIF- Distribution Map

Next Section -- Juncus bufonius L. -- Toad rush
Return to Family -- Juncaceae - The Rush Family
Next Section -- Juncus compressus Jacq.

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/plants/vascplnt/species/jcan.htm
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 06:43:44 EST
Reston, VA [vaww55]