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Published In: Essai d'une Nouvelle Agrostographie 51, 178, pl. 13, 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 100 species in the tropics and subtropics; 6 species occur in Pakistan, 2 of them cultivated.
Comment/Acknowledgements: The bristles are considered to be sterile panicle branches. In some species only the tips of the main branches are thus sterilised, and the distinction from Panicum is then somewhat arbitrary.


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Annuals or perennials. Leaf-blades flat or folded, sometimes pleated: ligule usually a ciliate rim. Inflorescence a panicle, open or spike-like, the spikelets (or only the terminal) subtended by 1 or more bristles which persist on the axis after the spikelets fall. Spikelets oblong to ovate, ± plano-convex, awnless, the lower glume abaxial; glumes unequal, the lower generally much smaller, ovate from a clasping base; lower floret male or barren, as long as the spikelet, herbaceous; upper floret bisexual, its lemma crustaceous, strongly convex on the back, often rugose, clasping only the margins of the palea. Caryopsis oblong or ellipsoid.

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1 Leaves flat, not plicately folded (2)
+ Leaves plicately folded; panicle lax Setaria palmifolia
2 (1) Panicle spike-like, sometimes ± lobed (3)
+ Panicle branched Setaria intermedia
3 (2) Spikelets deciduous as a whole (4)
+ Spikelets not deciduous, the upper floret disarticulating at maturity above the persistent lower lemma; cultivated annual Setaria italica
4 (3) Bristles antrorsely barbed (5)
+ Bristles retrorsely barbed, adhering tenaciously to clothing Setaria verticillata
5 (4) Upper glume as long as the upper lemma, the latter finely rugose Setaria viridis
+ Upper glume as long as the upper lemma, the latter finely rugose Setaria pumila
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