Stem at the top round, or round trigonous, not (or very obscurely) transversely septate when dry. Leaves (i.e. the green portion) attaining sometimes 5 in. in length, but usually very short or hardly any. Bracts usually 1/4– 3/4 the height of the umbel, but sometimes overtopping it. Spikes less clustered; otherwise as C. articulatus.
glabrous; stolons stout, becoming a thick woody rhizome; stems 2–3 ft. long, stout, trigonous at the top, very obscurely transverse-septate; leaves 0, or uppermost short; rays of umbel up to 3–6 in. long; bracts 3–4, usually 1 1/2–3 in. long, suberect, keeled; Spikelets numerous, loosely or closely spicate, 1/3–1 by 1/16 in., compressed, 10–18-flowered, straw-coloured with red marks; rhachilla scarious-winged; Glumes ovate, subobtuse, hardly keeled; stamens 3; anthers linear, not crested; nut scarcely 1/2 the length of the glume, trigonous, obovoid; style shorter than the nut, branches 3 linear, longish.
Descr. et Ic. 42, t. 7, fig. 4. —C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 612, in Durand & Schinz, Conspect. Fl. Afr. v. 554, and in Dyer, Fl. Cap. vii. 181; Rendle in Cat. Afr. Pl. Welw. ii. 116.
Descr. et Ic. 42, t. 7, fig. 4;—C. B. Clarke in Journ. Linn. Soc. xx. 292, xxi. 158, and in Hook. f. Fl. Brit. Ind. vi. 612.