File Size: 37 KB
Scleria triglomerata  Michx.
McPherson County, Kansas
Height: 16-40 inches
Family: Cyperaceae - Sedge Family
Flowering Period:   May, June, July, August, September
Also Called: Whip razor-sedge, tall nut-grass, whipgrass.
Culms: Erect to ascending, strongly triangular, stout, glabrous, angles rough.
Leaves: Flat, linear, 2/5 to 12 inches long, 1/8 to 2/5 inch wide, shorter than culm, stiff, rough, ribbed, glabrous or slightly pubescent on veins below; margins rough, sometimes slightly pubescent; tip abruptly tapering to point.
Sheaths: Not winged, glabrous or minutely pubescent, often tinged purplish.
Ligules: Rigid, glabrous or hairy.
Inflorescences: Head-like clusters of spikelets, 1-3, 3/5 to 1.6 inch long, 1/5 to 3/5 inch wide, terminal and in leaf axils; involucral bracts erect to ascending, leaf-like, elongate, lanceolate, 1 to 6 inches long, exceeding inflorescence, fringed or glabrous; tips tapering to long points.
Spikelets: Brown, 1/8 to 2/5 inch long; 1-flowered pistillate spikelets usually distributed among clusters of staminate spikelets; staminate scales lanceolate, tapering to points, green to purplish-brown; pistillate scales ovate, midrib prolonged into short awn; stamens 3.
Fruits: Achene, nearly spherical to egg-shaped, 1/12 to 1/10 inch tall and wide, smooth, shiny, whitish , situated on low, ring-like structure (hypogynium); hypogynium somewhat 3-lobed, covered with rough, white crust; achene tip usually with minute point.
Habitat: Sandy prairies, sandy open woods, ditches, meadows, swales, rocky disturbed sites; sandy soils.
Distribution: East third of Kansas and McPherson County.
Origin: Native
Comments: The stems are usually clustered in tufts.

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