Cyperus hyalinus combines characteristics of Cyperus, Kyllinga, and Pycreus and has been placed in the monotypic genus Queenslandiella
This remarkable little sedge has long been known from tropical and subtropical areas of the Old World.  Before its 1999 discovery in Dade County, Florida, this species was not known to occur in the Western Hemisphere (Carter & Mears, Sida 19:345-351, 2000). 
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A. Plant habit (scale bar=1 cm).  B. Spikelet (scale bar=1 mm).  C. Achenes (scale bar=1 mm).