Leptochloa fascicularis

Leptochloa fascicularis (Lam.) A. Gray, Man. 588. 1848
Fesluca fascicularis Lam. Tab. Encyc. 1: 189. 1791.
Fesiuca polystachya Michx. Fl. Bor. Am. 1: 66. 1803. (Type from Illinois, Michaux.)
Diplachne fascicularis Beauv. Agrost. 81, 160. 1812. (Based on Festuca fascicularis Lam.)
Fesluca procumbens Muhl. Descr. Gram. 160. 1817. (Type from Carolina.)
Festuca clandestina Muhl. Descr. Gram. 162. 1817. (Type from New York.)
Cynodon fascicularis Rasp. Ann. Sci. Nat. 5: 303. 1825. (Based on Diplachne fascicularis Beauv.)
Leptochloa polystachya Kunth, Rfev. Gram. 91. 1829. (Based on Festuca polystachya Michx.)
Diachroa procumbens Nutt. Trans. Am. Phil. Soc. II. S: 147. 1837. (Based on Festuca procumbens
Muhl.) Festuca texana Steud. Syn. Gram. 310. 1854. (Type from Texas, Drummond 387.) Uralepsis composita Buckl. Proc. Acad. Phila. 1862: 94. 1862. (Type from New Mexico, Wood-
house.) Diplachne patens Foum.; Hemsl. Biol. Centr. Am. Bot. 3: 570, name only. 1885; Mex. PI. Gram. 2:
148. 1886. (Type from Vera Cruz, Mexico, Gouin 93.) Not D. patens Desv. 1853. Diplachne Tracyi Vasey, Bull. Torrey Club 15: 40. 1888. (Type from Reno, Nevada, Tracy [216].) Leptochloa Tracyi Beal, Grasses N. Am. 2: 436. 1896. (Based on Diplachne Tracyi Vasey.) Fesluca proslrata Muhl.; Scribn. & Merr. Circ. U. S. Dep. Agr. Agrost. 27: 5, as synonym of F.
procumbens Muhl. 1900. Diplachne procumbens Nash in Britton, Man. 128. 1901. (Based on Festuca procumbens Muhl.)
Not D. procumbens Arech., 1896. Diplachne acuminata Nash in Britton, Man. 128. 1901. (Type from Kansas, Thompson.) Diplachne mariiima Bickn. Bull. Torrey Club 35: 195. 1908. (Based on D. procumbens Nash.)
Annual; culms erect or decumbent-spreading at the base, to more than 1 meter tall, simple or usually freely branching, especially in depauperate plants, glabrous; sheaths rounded on the back or keeled only near the summit, glabrous or scaberulous; ligule hyahne, lacerate, 3-5 mm. long; blades flat, scabrous, 10-50 cm. long, 1-5 mm. wide; inflorescence 15-30 cm. long (much reduced in depauperate plants) ; spikes numerous, approximate or rather distant, ascending or spreading, the lower ones 8-15 cm. long, becoming shorter upward; spikelets 8-10-flowered, 8-10 mm. long, apprcssed; glumes acuminate, the first narrow, 2.5-3 mm. long, the second broader, 3-4 mm. long; lemma 3-4 mm. long, abruptly acute, minutely notched, mucronate or aristate, densely pubescent on the margins and midnerve in the lower half.
Type locality: South America. », „ , • .
Distribution: Wet ground and waste places, often m brackish marshes. New Hampshire to Florida and Texas; Illinois to South Dakota and Washington, and southward through tropical America to Argentina. „ . „ .,. , ., r. ,, ,, r>