Xyris jupicai Rich.

PLANTS OF THE GUI ANAS
Xyridaceae
Xyris jupicai Rich.
Det. M.T. Strong, 2011
GUYANA. Cuyuni-Mazaruni. Cara Creek, along the banks and on small
islands in creek, to 5°32'50.3"N, 60°53'47.9"W and 506 m elevation
(south of Camp 4); tributary of Kako River, near border with Venezuela.
543 m. 5°32'43"N 60°54'9.8"W. Islands formed from gravel bars, prone
to scouring, rich in herbs and shrubs. Rock substrate of pink sandstone
and red chert. Plant flabelliform, herbaceous. Growing in rocky
sandbars. Plant base cream. Leaves to 30cm. Inflorescence scapose, to
0.5m. Head elongate. Bracts green, brown on margins. Flowers yellow,
opening in AM. Rare. Silica sample.
K.J. Wurdack 5287	8 July 2010
With: K. Redden, S. Alexander, C. Perry, C. Jacobis, D. Hunter, V.
Roland & H. Hunter
Smithsonian Biological Diversity of the Guiana Shield Program
U.S. National Herbarium (US)
03760571