Cyperus neokunthianus, a member of the Cyperaceae (sedge) family, is a perennial plant with short and slightly thickened rhizomes. Culms (aerial stems) are 40 to 120 cm (16 to 47 in) tall and 2 to 5 mm (0.08 to 0.2 in) in diameter near the base, trigonous (3-sided) and smooth or roughened on angles...