Michael Grayum 10412 Det. by: G. Davidse, 1994 Phenology: FL 2 April 1993 09:46N 84:32W 130-150 m SAN JOSE, TURRUBARES R.B. Carara Valle del Tárcoles. Common grass in sandy coves along river, growing in patches.
Michael Grayum 9011 Det. by: G. Davidse, 1989 Phenology: FL 12 November 1988 10:38N 83:45W 10 m LIMON, POCOCI R.N.F.S. Barra del Colorado Llanura de Tortuguero. Local in open, marshy site.