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Schizachyrium Nees, Agrost. Bras. 331. 1829. Blatter & McCann, Bombay Grasses 98. 1935; Bor, Fl. Assam 5:395. 1940; Bar, Grasses Burma Ceyl. Ind. Pak. 214. 1960; Bor in Rech. f., Fl. Iran. 70:548. 1970.
Annuals or perennials, often tall but sometimes delicate. Leaf-blades linear, acute or obtuse at the tip; ligule membranous to scarious. Inflorescence composed of single racemes usually arranged in a spatheate false panicle, but sometimes solitary at the tip of the culm; racemes slender; internodes and pedicels linear to clavate. Sessile spikelet linear to lanceolate; callus obtuse, inserted into the crateriform and scariously rimmed tip of the internode; lower glume thinly chartaceous to subcoriaceous, convex to concave on the back, 2-keeled (or at least sharply inflexed), the keels ± frontal, with several intercarinal nerves; lower floret reduced to a hyaline lemma; upper lemma hyaline, often stipitiform, shortly bilobed or deeply bifid (very rarely entire), with a glabrous awn from the sinus (very rarely awnless); palea small or absent; caryopsis linear, subterete. Pedicelled spikelet male or barren, commonly smaller than the sessile.
A genus of about 50 species throughout the tropics; 2 species occur in Pakistan, one of them introduced.
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Lower glume of sessile spikelet deeply depressed on the back; pedicelled spikelet awnless, longer than the sessile and on a straight, stoutish pedicel |
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Schizachyrium impressum |
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Lower glume of sessile spikelet convex to shallowly concave on the back; pedicelled spikelet shortly awned, much shorter than the sessile and on a curved, slender, pedicel |
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Schizachyrium scoparium |
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Lower Taxa
Related Synonym(s):
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