Paspalum culiacanum Vasey

Paspalum culiacanum Vasey, Contr. U. S. Nat
Herb. 1 : 281. 1893
Stems tufted, branched, up to 8 dm. tall, erect, glabrous; leaf-sheaths glabrous, often ciliate on the margin; blades up to 2 dm. long and 1 cm. wide, linear-lanceolate, ascending, firm, smooth and glabrous, rough on the margins; racemes 2-5, 5-8 cm. long, spreading or ascending, the lower ones often stalked; spikelets more than 2 mm. long, oval to obovate, obtuse, glabrous, yellowish, the first scale small, present or wanting in the lower spikelet of each pair and wanting in the upper spikelet, the second and third scales yellowish, the nerves green and very prominent, the second scale 5-nerved, the third 3-nerved, the fruiting scale yellowish, oval, strongly roughened with longitudinal rows of papillae.
Type locality : Mountains of Culiacan, Sinaloa. Distribution : Known only from the type locality.