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Analogue Sedge

Carex simulata Mack.

Comprehensive Description

provided by North American Flora
Carex simulata Mackenzie, Bull. Torrey Club 34: 604. 1908
"Carex marcida Boott " Boott, 111. Carex 16, in part. pi. 4S . 1858. ••Carex Guyana Desv." Boott, 111. Carex 126. pi. 411. 1862.
Rootstocks slender, 1.5-2 mm. thick, long-creeping, brown, scaly, fibrillose, the culms 3-5 dm. high, one or few together, sharply triangular and roughened on the angles above, slender, much exceeding the leaves, light-brownish at base, the old leaves of the previous year inconspicuous; leaves with well-developed blades 2-5 to a culm, all on its lower third, but not bunched, the blades erect-ascending, 8-30 cm. long, 2-4 mm. wide, flat or canaliculate, light-green, not thick, roughened on the margins and towards the apex, the sheaths tight, truncate at mouth, the ligule about as wide as long; spikes 5-15, densely aggregated into a linear-oblong, oblong, or oblong-ovoid head 12-25 mm. long, 6-10 mm. thick, the individual spikes not separated, but the lower distinguishable, the more strongly pistillate oblong-ovoid, 7 ram. long, 3.5 mm. wide, with about ten perigynia beneath and the inconspicuous staminate flowers above; other spikes almost entirely staminate with an occasional perigynium, and whole heads almost entirely staminate or little staminate, as the case may be; bracts absent or the lower one or two if present shorter than the head, more or less strongly cuspidate, and enlarged at base; scales ovate-triangular, brown with narrow hyaline margin and prominent lighter midvein, strongly cuspidate or short-awned, wider and noticeably longer than the perigynia and concealing them completely; perigynia unequally biconvex, broadly ovate, 1.75-2.25 mm. long, 1.5 mm. wide, ascending, yellowish-brown when young, chestnut-colored at maturity, shining, coriaceous, rounded-truncate, short-stipitate, little spongy at base, not thickened on margins or winged above, high-convex and slenderly fewnerved dorsally, flat or at length low-convex and nerveless or obscurely nerved at base ventrally, not margined, but sharp-edged, the upper part of the body and the beak serrulate, sometimes only sparingly so, abruptly narrowed into a very short beak 0.25-0.5 mm. long, obliquely cleft dorsally, at length scarcely bidentulate, the margins of the orifice overlapping and slightly hyaline; achenes lenticular, obovoid, 1 mm. long, tapering at base, bluntly apiculate, yellowish-brown; style short, slender, not enlarged at base, jointed with achene; stigmas two, slender, light-brown.
Type locality: Chug Creek, Albany County, Wyoming (A. Nelson 7316).
DisTRiBi'TiON : Wet swales and swamps, Montana to Washington, and southward to New Mexico and the Sierra Nevada of California. (Specimens examined from New Mexico, Colorado, Wyoming, Montana, Idaho, Washington, Oregon, California.)
bibliographic citation
Kenneth Kent Mackenzie. 1931. (POALES); CYPERACEAE; CYPEREAE (pars). North American flora. vol 18(1). New York Botanical Garden, New York, NY
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