]> GH barcode-00028825 Venezuela BolĂ­var Ptari-tepui, dry sandy and rocky sandstone exposures on level ground adjacent to swamp on plateau-portion of southeast-facing slopes, 1600 m Xyris setigera var. elongata Steyermark Steyermark 2010-08-16 16:43:41 J. A. Steyermark