Taxonomy
Family: Juncaceae
Habitat
Swamps, marshes, wet shores.
Associates
Distribution
Quebec and Nova Scotia, west to MN, south SC to IN, NE.
Morphology
Stout, erect perennial to 1 m. Leaves erect, terete, septate; lower leaf sheaths coarse or coriacous. Heads few to many, ranging from obpyramidal with 5-10 flowers or spherical with up to 50 flowers; tepals long-tapering to lance-subulate, 3-nerved; petals slightly longer than the sepals; stamens 3 (sometimes 6). At least some seed with a white, caudate tip 0.2 mm or more long at one or both ends.
Notes
Flowers June to September
Wetland indicator: Facultative Wetland
Might be confused with J. acuminatus but the petals of J. canadensis are usually longer than the sepals and more strongly nerved and subulate. Note the white, caudate tip of the seeds in the second image.
References
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G.
Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
Michael Hough © 2009 |