Cyperus solidus Kunth

Perennial herb, slender to robust, tufted, 0.36-2.00 m high. Leaf blades 1.7-14.5 mm wide, V-shaped or U-shaped. Culm scapose, 3-angled, 2.2-3.0 mm in diam. Inflorescence a compound or rarely simple anthela of dense spikes, shortly cylindrical or bullet-shaped, 12-34 x 7-32 mm. Subtending bracts 3-11, leaf-like. Spikelets densely spaced, ± compressed, lanceolate, 4.6-17.0 x 1.0-3.0 mm, 3-18-flowered. Glumes tightly imbricate, ovate when flattened, 2.8-4.8 mm long, keel. Flowering time Oct.-Dec. Nutlet narrowly obovate to narrowly elliptical, 1.4-2.5 x 0.4-0.7 mm, 3-angled, dark brown, surface minutely reticulate.