Melica macra

Melica macra is a species of grass that can be found in Argentina, Brazil, and Uruguay.

Description
The species is bisexual with closed leaf-sheaths and have short rhizomes with culms that are 20 - 100 cm tall. It panicle is 10 - 15 cm long and is linear. Its rachis and branches are scabrous while the ligule is 0.2 - 0.3 mm long and is membranous. The glumes are lanceolate, papery and membranous on borders, with difference in size; Lower glume is 5.5 - 10 mm long by 2.5 - 3.5 mm wide while the upper one is 6.5 - 10 mm long by 2 - 3 mm wide.

Distribution
In Argentina, it is found in such provinces as Buenos Aires, Catamarca, Corrientes, Entre Rios, Formosa, La Pampa, Misiones, Santiago del Estero, Tucumán, San Luis, and Santa Fe.