Carex scabrata Schwein. - Rough Sedge


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Carex scabrata - (image 1 of 4)



Family: Cyperaceae


Section Anomalae  


Shaded moist or springy ground, swamps.




Nova Scotia and Quebec west to MI, south to NJ, OH, MO and in mountain to GA.


Colonial from creeping rhizomes, to 90 cm; lower leaves well-developed (phyllopodic); leaves 4-8 mm wide on fertile shoots, to 14 mm wide on sterile shoots; staminate spike 2-4 cm long on a shorter peduncle; pistillate spikes 3-several, cylindric, 2-4 cm, erect; lower spikes on long peduncles; bracts leaf-like, sheathless; pistillate scales lanceolate, about as long as the perigynia, acuminate to acute; perigynia obovoid, trigonous, to 4.4 mm, minutely hairy, 2-ribbed with few nerves; beak bidentate, half as long as the perigynia body and somewhat curved; achene trigonous.


Fruiting June to August

Wetland indicator: OBL

The specific epithet refers to the scabrous (rough) nature of the leaves and stems. A distinctive species and the only member of section Anomalae found in eastern North America.


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