Taxonomy
Family: Cyperaceae
Section Porocystis
Habitat
Dry woods and fields.
Associates
Distribution
Nova Scotia to WI, south to NC and AR.
Morphology
Tufted perennial to 1 m, reddish-purple at the base; leaves 2-4 mm wide, hairy, often exceeding the stems; terminal spike pistillate at the top, staminate below; pistillate spikes 1-2 cm, ellipsoid or thick-cylindric, densely flowered; anthers 0.7-1.5 mm; pistillate scales much shorter than the perigynia but often ending in a cusp equaling the perigynia; perigynia obscurely trigonous, 1.8-2.5 mm, beakless; achene trigonous; stigmas 3.
Notes
Fruiting May to June
Wetland indicator: FACU
Carex virescens is similar but has elongate spikes (2-4 cm) that are loosely flowered at the base and larger anthers (1.5-2.5 cm). Might be mistaken for C. hirsutella which has smooth perigynia.
References
Curtis, L. 2006. Woodland Carex of the upper Midwest. Lake Villa, IL.
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 2010 |