Carex ebenea Rydb.

  • Authority

    New York Botanical Garden. Herbarium of Dr. Per Axel Rydberg. Purchased, 1899. Contributions from the New York Botanical Garden.

  • Family

    Cyperaceae

  • Scientific Name

    Carex ebenea Rydb.

  • Description

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    Species Description - Perennial by a cespitose rootstock. Stem 2-4 dm. high, strongly striate; sheath with a conspicuous membranaceous ligular portion, ligule proper rounded, about 2 mm. long; leaf-blades flat, 1-2 dm. long, 3-6 mm. broad, strongly nerved: spikelets about 1 cm. long in a dense globular or rounded conical head: shining, brownish black with a Hghter midrib, lanceolate, acute, 3-4 mm. long: perigynia lanceolate, tapering gradually into a long beak, with the beak about 5 mm. long, dark brown; staminate flowers at the base and mixed with the pistillate; upper portion of the wings and the beak scabrous on the margins; teeth at the apex of the beak very short, subulate: styles 2: achene oblong, lenticular, nearly 2 mm. long and fully 1 mm. broad.

  • Discussion

    This species is nearest related to C. festiva and has been labeled C. festiva Haydeniana, but it is not the same as the original of that variety, which has broadly ovate perigynia. C. ebenea differs also from all forms of C. festiva in the form of the perigynia and in the dark glossy color of the bracts and perigynia.

    Colorado: Pikes Peak, 1900, F. Clements (type); Windy Point, 1900; Mt. Harvard, 1896, 7; Grecian Bend, 1896, Bottomless Pit, and Saddle, Clements ; between Cheyenne Mountain and Seven Lakes, 1896, E. A. Bessey ; Ironton, 1899, C. C. Curtis ; Telluride, 1894, F. Tweedy, 194; Chambers Lake and Cameron Pass, 1896, C F. Baker; Clear Creek Canon, 1878, M. E. Jones, 267; Silver Plume, 1895, Rydberg, 2460; Pagosa Peak, 1899, C. F. Baker, 233.

  • Distribution

    Colorado

    Colorado United States of America North America|