Tuft slender to robust. Leaf apex entire; sheath margins entire or with little laceration, white, purplish or brown. Male inflorescence usually 1/4-3/4 as long as leaves, branched or rarely unbranched; branches whorled; scape shorter than rachis, not flattened; flower clusters whorled. Female inflorescence similar, unbranched. Cluster bracts triangular to narrowly triangular, only the lowest on main axis conspicuous, those among flowers obscure; bract and inner bract brown or purplish. Male flowers campanulate, usually 2-3 mm long; pedicel absent or up to 12 mm long. Female flowers larger, sessile. Sepals and petals similar except petals thicker; sepals purplish; petals yellow.