Michael Grayum 9612 Det. by: M. Grayum, XII 1989 Phenology: FL 29 December 1989 09:56N 84:02W 1225 m SAN JOSE, MONTES DE OCA Valle Central. Tall, weedy grasses in neglected, raised planter at base of tree. Spikelets becoming purplish-tinged.
Michael Grayum 9619 Det. by: G. Davidse, 1991 Phenology: FL 1 January 1990 09:58N 84:15W 805 m ALAJUELA, ALAJUELA Valle del Tárcoles. Tall, weedy grasses at roadside near sugar-cane field. Spikelets becoming maroon.