Difference between revisions of "Setaria barbata"
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Revision as of 19:22, 24 September 2019
Plants annual. Culms 50-200 cm; nodes pubescent. Sheaths with ciliate margins distally; ligules about 1 mm, ciliate; blades 10-25 mm wide, plicate, both surfaces scabrous, adaxial surfaces with parallel rows of papillose-based hairs. Panicles to 20 cm, open; branches 2-4 cm, axes villous; bristles solitary, usually only present below the terminal spikelet on each branch, occasionally below non-terminal spikelets, 5-8 mm, flexible. Spikelets 2.5-3 mm. Lower glumes about 1 mm, orbicu¬lar, 3-5-veined; upper glumes about 2 mm, ovate, 7-veined; lower lemmas about 2.5 mm, slightly coriaceous, acute; lower paleas about equaling the lower lemmas in length and width; upper lemmas about 2.3 mm, strongly transversely rugose; upper paleas enclosed. 2n = 54, 56.
Distribution
Puerto Rico, Fla., Miss.
Discussion
Setaria barbata is an African species that was apparently introduced to the Western Hemisphere from Asia. It is now common throughout the West Indies, but rare in the Flora region.
Selected References
None.