Xyris setigera var. elongata Steyerm. in Fieldiana, Bot. 28: 112. 1951
Xyris setigera var. elongata in Fieldiana, Bot. 28: 112. 1951
Holotype: Venezuela, Bolivar, Ptari-tepui, 1 Nov 1944, Steyermark 59660
Isotype: Venezuela, Bolivar, Ptari-tepui, 1 Nov 1944, Steyermark 59660
Isotype: Venezuela, Bolivar, Ptari-tepui, 1 Nov 1944, Steyermark 59660 (NY)
Xyris setigera var. elongata in Fieldiana, Bot. 28: 112. 1951