Restio vallis-simius H.P.Linder

Plants single, isolated shoots, 0.5-1.0 m high; compact, without spreading rhizomes or stolons. Culms stout, 2.5-5.0 mm in diam. at base, branching, smooth, olivaceous. Leaf sheaths closely convolute, apical margins narrowly membranous, hyaline shoulders absent or membranous margins continuing behind awn. Inflorescences with 2-20 spikelets. Male inflorescences with sheath-like spathes; fertile bracts cartilaginous without membranous margins. Female spikelet sessile, 10-20 mm long. Ovary bilocular; styles 3, plumose, white, free to base. Flowering time May. Fruit a dehiscent capsule; seed smooth and shiny.