High Quality Content by WIKIPEDIA articles! Fimbristylis vahlii is a species of sedge known by the common name Vahl`s fimbry. It is native to much of Central America and the southern half of North America, where it grows in wet habitat. This is a small, clumping sedge producing rounded stems just a few centimeters high surrounded by curling, thready leaves. At the top of the stem is an inflorescence which is a cluster of several cylindrical, pointed spikelets surrounded by long, narrow, twisting bracts. The fruit is a tiny achene about half a millimeter wide.