Difference between revisions of "Paspalum unispicatum"
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|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Revision as of 19:23, 24 September 2019
Plants perennial; rhizomatous, not rooting at the lower nodes. Culms 50-80 cm, erect. Sheaths glabrous, pubescent apically, margins scarious; ligules 1-2 mm, membranous, lacerate; blades 3-4 mm wide, flat, glabrous, pubescent behind the ligules, margins papillose-ciliate. Inflorescence terminal, erect, a spicate raceme 7-15 cm long, or a panicle with 1-2 subterminal spicate branches that are wholly or partially enclosed in the upper sheath, often arcuate; branches terminating in a spikelet. Spikelets 2.7-3 mm, paired, imbricate, obovate, stramineous. Lower glumes absent, or 1-2.3 mm; upper glumes and lower lemmas glabrous, 3-veined, margins entire; lower lemma lacking ribs over the veins; lower florets often staminate; lower paleas 2.5-2.9 mm, membranous; upper florets 2.3-2.9 mm, white, stramineous, or golden brown. 2n = 40.
Discussion
Paspalum unispicatum grows in sandy soil in the coastal plain of Texas and extends southward through Mexico and Central America to Cuba and Paraguay, Uruguay, and Argentina. It has not been reported from Brazil.
Selected References
None.