Gerardo Herrera 4715 Det. by: P. Dávila, X 1994 Phenology: FL 5 December 1990 08:29N 83:28W 600 m PUNTARENAS, GOLFITO P.N. Corcovado Península de Osa. Macolla de hasta 2 m. Espiga verde- morado, anteras amarillas, conspicuas.
Michael Grayum 10401 Det. by: G. Davidse, 1994 Phenology: FL 2 April 1993 09:46N 84:32W 160-240 m SAN JOSE, TURRUBARES R.B. Carara Valle del Tárcoles. Grasses ca. 1.5 m tall in disturbed site at roadside.
Michael Grayum 9659 Det. by: G. Davidse, 1991 Phenology: FL 10 February 1990 09:53N 83:11W 215 m LIMON, LIMON Faja Costeña de Limón. Coarse grasses, the culms to at least 2 m long, on open, disturbed slope above river.
Erick Bello 1796 Det. by: G. Davidse 1994 Phenology: FL 12 January 1990 10:15N 84:48W 1300 m PUNTARENAS, PUNTARENAS Cordillera de Tilarán. Pasto en derrumbe. Flor blanca, anteras vino.
William Haber 9723 Det. by: G. Davidse, 1994 Phenology: FF 2 January 1990 10:17N 84:48W 1200 m PUNTARENAS, PUNTARENAS Cordillera de Tilarán. Herb, 1 m, rocky road bank. Inflorescence green with purple shading.
William Haber 9622 Det. by: G. Davidse, 1994 Phenology: FF 17 December 1989 10:18N 84:49W 1200 m PUNTARENAS, PUNTARENAS Cordillera de Tilarán. Herb, 1.5 m tall, roadside.