Michael Grayum 7987 Det. by: J. Gómez-Laurito, IX 1988 Phenology: FL 21 January 1987 09:24N 84:10W 1-10 m PUNTARENAS, AGUIRRE Faja Costeña del Valle de Parrita. Scarce on carril (boundary lane) in secondary forest on ridgetop. Spikelets light brown.
J.F. Morales 964 Det. by: M. Grayum, XI 1992 Phenology: FL 7 November 1992 09:43N 84:23W 450 m SAN JOSE, PURISCAL Z.P. La Cangreja Cerros de Puriscal. Hierba. Espigas verde claro.
Armando Estrada 211 Det. by: J. Gómez-Laurito, XI 1994 Phenology: FR 13 September 1994 09:52N 85:23W 100-420 m GUANACASTE, NANDAYURE Península de Nicoya. Hierba de 0.25 m, creciendo en potrero. Frutos abundantes, parduscos.
Michael Grayum 9622 Det. by: G. Davidse, 1991 Phenology: FL 12 January 1990 10:26N 85:48W 10 m GUANACASTE, SANTA CRUZ Península de Nicoya. Common weed in lawn of private residence.