Sporobolus tenuissimus (Mart. ex Schrank) Kuntze

Sporobolus tenuissimus (Schrank) Kuntze, Rev. Gen. 3 2 : 369
1898.
Panicum tenuis simum Schrank, Denks. Bot. Ges. Regensb. 2: 26. 1822. Agrosticula muralis Raddi, Agrost. Bras. 33. 1823. (Type from Brazil.)
Sporobolus muralis Hitchc. & Chase, Contr. U. S. Nat. Herb. 18: 368. 1917. (Based on Agrosticula muralis Raddi.)
Annual; culms slender, erect, compressed, glabrous, 25-75 cm. tall; sheaths glabrous, compressed-keeled; ligule very short, ciliate; blades flat, thin, long-acuminate, glabrous or nearly so, 5-15 cm. long, the uppermost blades not much reduced, 1-3 mm. wide; panicles about half the length of the entire culm, narrow, open, 3-6 cm. wide, the branches and branchlets glabrous, capillary, spreading; spikelets glabrous, about 1 mm. long, on slender glabrous pedicels; first glume about one fourth, the second about half the length of the spikelet.
Type locality: Brazil.
Distribution: Waste ground, Virgin Islands through the Lesser Antilles to Brazil.