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Published In: Essai d'une Nouvelle Agrostographie 91, pl. 18, f. 3. 1812. (Ess. Agrostogr.) Name publication detailView in BotanicusView 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 60 species mainly in temperate and cold regions of both hemispheres; 2 species occur in Pakistan.


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Caespitose perennials or rarely annuals. Leaf-blades filiform to linear, flat, folded or rolled; ligule often elongated. Inflorescence a spreading (or rarely contracted) panicle, with small shining spikelets. Spikelets usually 2-flowered, the florets similar, bisexual; rhachilla disarticulating below each floret, pilose or rarely glabrous, produced as a fine bristle; glumes subequal or unequal, mostly acute, keeled, subscarious to membranous with thin shining margins, the lower 1-3 nerved, the upper 3 (rarely 1)-nerved; lemmas lanceolate to oblong, shorter than the glumes or the upper with the tip exserted, scarious-membranous to thinly membranous, obscurely 4-5-nerved, 2-lobed, 4-toothed or lacerate-truncate at the apex, with a straight or geniculate awn from the back; callus minute, obtuse, usually bearded; palea about as long as the lemma, 2-keeled; stamens 3; stigmas 2.

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1 Panicle 2-5 cm long, densely contracted, often spikelike Deschampsia koelerioides
+ Panicle 10-30 cm long, effuse, or rarely contracted Deschampsia caespitosa
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