Monographs Details: Xyris ptariana Steyerm.
Authority: Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Family:Xyridaceae
Scientific Name:Xyris ptariana Steyerm.
Description:Distribution and Ecology - Distribution. High altitudes on Ptari-tepui and the Chimanta Massif, Gran Sabana, Bolivar, and Cerro Sipapo, Amazonas, Venezuela.

Discussion:Type. Forming dense tufts, wet bluffs, alt. 2000 m, Ptari-tepui, Gran Sabana, Bolivar, Venezuela, Steyermark 59919 (isotype NY).
Distribution:Venezuela South America|