Distribution: Occurring chiefly east of the Cascades crest in Washngton; southern British Columbia to California, east to the Rocky Mountains, Great Plains, Great Lakes region, and northeastern North America.

Habitat: Wet places, including meadows and streambanks, at low to middle elevations.

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Rhizomatous perennial with stems lasting less than a year, sometimes overwintering in southwestern United States, typically unbranched, 2-15 dm. tall, with single lines of stomates and 10-32 ridges; sheaths green and elongate, 7-15 mm long and 3-9 mm bread; teeth 10-32, articulate and typically shedding early with dark rim on sheath remaining.

None

Cone tip rounded; spores green and spheric.