Difference between revisions of "Setaria scheelei"
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|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
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Revision as of 20:22, 24 September 2019
Plants perennial; cespitose. Culms 60-120 cm; nodes pilose, with appressed hairs. Sheaths glabrous or hispid; ligules 1-2 mm, hispid; blades 15-30 cm long, 6-15 mm wide, flat or folded, scabrous, often pubescent. Panicles 15-25 cm, open, tapering from the base; rachises pubescent to villous; lower branches to 3 cm; bristles usually solitary, 10-35 mm, divergent. Spikelets 2.2-2.5 mm, elliptical. Lower glumes about 1/2 as long as the spikelets, 3-veined; upper glumes from 3/4 as long as to equaling the upper florets, 5-veined; lower lemmas equaling the upper lemmas, 5-veined; lower paleas about 1/2 as long as the upper paleas, lanceolate; upper lemmas finely cross-wrinkled, shortly apiculate; upper paleas ovate-lanceolate. 2n = 54.
Discussion
Setaria scheelei grows in alluvial soils of canyons and river bottoms of New Mexico and Texas. Within the Flora region, it is particularly abundant in the limestone canyons of the Edwards Plateau of central Texas. Its range extends into central Mexico.
Selected References
None.