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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.)
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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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