Gerardo Herrera 4710 Det. by: G. Davidse, 1994 Phenology: FR 5 December 1990 08:29N 83:28W 600 m PUNTARENAS, GOLFITO P.N. Corcovado Península de Osa. Macolla herbácea. Espiga verde-rosado.
Gerardo Herrera 3593 Det. by: M. Grayum, I 1990 Phenology: 29 September 1989 09:20N 83:17W 1900 m PUNTARENAS, BUENOS AIRES R.I. Ujarrás Cordillera de Talamanca. Macolla herbácea. Espiga verde-rosada.
Michael Grayum 9580 Det. by: G. Davidse, 1991 Phenology: FL 15 December 1989 09:28N 83:42W 1550 m SAN JOSE, PEREZ ZELEDON Cordillera de Talamanca. Locally abundant, cespitose grass in roadside habitats, often forming nearly pure stands on the steepest roadcuts.
William Haber 9660 Det. by: N. Snow, VIII 1992 Phenology: FR 18 December 1989 10:16N 84:50W 900 m PUNTARENAS, PUNTARENAS Cordillera de Tilarán. Herb, 1 m, small clumps on roadbank.