Gerardo Herrera 2474 Det. by: M. Grayum, V 1990 Phenology: FL 27 February 1989 09:38N 83:07W 500 m LIMON, LIMON R.B. Hitoy Cerere Valle de la Estrella. Hierba de tallo café-rojizo. Inflorescencia blanco-café.
P.J.M. Maas 7970 Det. by: P. Maas, II 1991 Phenology: 17 February 1991 09:54N 83:45W 450-500 m CARTAGO, TURRIALBA Bosque Los Espaveles CATIE Valle del Reventazón. Herb to 1 m tall.
Michael Grayum 9663 Det. by: G. Davidse, 1991 Phenology: FL 16 February 1990 09:54N 84:17W 900 m SAN JOSE, MORA Z.P. El Rodeo Valle del Tárcoles. Rare grass in disturbed forest understory. Glumes deep maroon.
William Haber 10883 Det. by: G. Davidse, 1993 Phenology: FR 24 September 1991 10:16N 84:47W 1100 m PUNTARENAS, PUNTARENAS Cordillera de Tilarán. Herb forming dense spreading mat in understory, culms semi-erect, 0.4-0.5 m tall. Seeds 12 mm, glandular pubescent.
Erick Bello 2234 Det. by: G. Davidse, 1994 Phenology: FR 2 June 1990 10:55N 85:28W 1100 m GUANACASTE, LIBERIA P.N. Guanacaste Cordillera de Guanacaste. Hierba. Frutos secos.
Barry Hammel 17771 Det. by: B. Hammel, VII 1991 Phenology: FR 5 June 1990 10:55N 85:29W 1100 m GUANACASTE, LIBERIA P.N. Guanacaste Cordillera de Guanacaste. Hierba terrestre en soto-bosque.