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Published In: Flora Brasiliensis seu Enumeratio Plantarum 2(1): 331–332. 1829. (Mar-Jun 1829) (Fl. Bras. Enum. Pl.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: A genus of about 50 species throughout the tropics; 2 species occur in Pakistan, one of them introduced.

 

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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.
 

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1 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 Schizachyrium scoparium
+ Lower glume of sessile spikelet deeply depressed on the back; pedicelled spikelet awnless, longer than the sessile and on a straight, stoutish pedicel Schizachyrium impressum
 
 
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