Fimbristylis castanea
Family: Cyperaceae
Description: Cespitose perennial to 1 m high, forming dense clumps. Leaves 1-1.5 mm wide. Spikelets 7-20 mm long. Achenes about 1.8 mm long. Erect or ascending plant, 0.5-0.7 of plant height; blades narrowly linear, 1–2 mm wide, often involute or deeply sulcate (with long grooves or ridges); bases leathery, dark brown; sheaths bristly-ciliate
Location: Along coast, mostly on shores or flats of barrier islands. Native across much of the southeastern United States and into parts of Mexico and the West Indies. Found in brackish and salt marshes, as well as dune swales
Soil Type: Brackish sands.
Trivia:
Bloom: May-Nov.
Importance:
stxflora 