Setaria spp.
Family: Poaceae
Setaria image
Plants annual or perennial; cespitose, rarely rhizomatous. Culms 10-600 cm, erect or decumbent. Ligules membranous and ciliate or of hairs; blades flat, folded, or involute, or plicate and petiolate (subg. Ptychophyllum). Inflorescences terminal, panicles, usually dense and spikelike, occasionally loose and open; disarticulation usually below the glumes, spikelets falling intact, bristles persistent. Spikelets 1-5 mm, usually lanceoloid-ellipsoid, rarely globose, turgid, subsessile to short pedicellate, in fascicles on short branches or single on a short branch, some or all subtended by 1-several, terete bristles (sterile branchlets). Lower glumes membranous, not saccate, less than 1/2 as long as the spikelets, 1-7-veined; upper glumes membranous to herbaceous at maturity, 1/2 as long as to nearly equaling the upper lemmas, 3-9-veined; lower florets staminate or sterile; lower lemmas membranous, equaling or rarely exceeding the upper lemmas, rarely absent, not constricted or indurate basally, 5-7-veined; lower paleas usually hyaline to membranous at maturity, rarely absent or reduced, veins not keeled; upper florets bisexual; upper lemmas and paleas indurate, transversely rugose, rarely smooth; anthers 3, not penicillate; styles 2, free or fused basally, white or red. Caryopses small, ellipsoid to subglobose, compressed dorsiventrally. x = 9. Name from the Latin seta, bristle and aria, possessing.
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Image of Panicum polygonatum
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Setaria
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Image of Setaria chapmanii
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Image of Setaria geminata
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Image of Setaria latiglumis
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Setaria
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Setaria
Image of Setaria rariflora
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Image of Setaria retiglumis
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Image of Setaria scandens
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Setaria
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Image of Setaria sulcata
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Image of Setaria tenax
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Image of Setaria variifolia
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