Sporobolus aculeatus (L.) P. M. Peterson

Crypsis aculeata (L.) Ait. Hort. Kew. 1: 48. 1789
Schoenus aculealus L. Sp. PI. 42. 1753.
Agroslis acuteala Scop. Fl. Carn. ed. 2. 1; 62. 1772. (Based on Schoenus aculealus L.) Phleum aculealum Lam. Fl. Fr, 3: 563. 1778. (Based on Schoenus aculealus L.) Anlhoxanlhum aculealum L. f. Suppl. 89. 1781. (Based on Schoenus aculealus L.) Anlitragus aculealus Gaertn. Fruct. 2: 7. 1791. (Based on Schoenus aculealus L.) Pallasia aculeata Kuntze, Rev. Gen. 2: 781. 1891. (Based on Crypsis aculeala Ait.)
Culms freely branching, prostrate, glabrous, the mats 30 cm. in diameter, or often depauperate, 1-2 cm. wide; sheaths inflated, striate, glabrous or more or less pilose, broad at the summit, pilose on the collar; ligule aline of stiff hairs about 1 mm. long; blades flat, more or less pilose on both surfaces, mostly less than 5 cm. long, often much shorter, 1-3 mm. wide; panicles globose, spikelike, mostly 3-5 mm. long, pale, the spikelets nearly sessile, crowded on a short axis, supported by 2 bracts, numerous on the short branches from all the nodes; glumes about 2.5 mm. long, compressed, more or less pubescent, scabrous on the keels; lemma about as long as the glumes.
Type locality: Southern Europe.
Distribution: Open ground, dry beds of streams and pools, especially on land that has been overflowed, central California; introduced from the Mediterranean region.

Sporobolus aculeatus is a species of plants in the family Poaceae (true grasses).