Biology :
Perennial, tussocky herb, with short, woody rhizome producing stolons; culms to >1 m long, 0,8-3,5 mm Ø, smooth, terete or trigonous, scabrous above, greyish-green; leaf sheath 3-15 cm long, from rather soft to rigid, greyish-brown or reddish-brown, scarious side conspicuously veined; blade canaliculate, greyish-green, margins scabrous, apex flat, obtuse, scabrous; inflorescence of 1-100 or more globose heads of congested spikelets; primary branches to >10 cm; secondary branches to 3 cm; heads 0,3-1,5 cm Ø, of 6-40 tightly congested spikelets, these ± globose, 1,5-4x1-2 mm, with 10-30 glumes (keeled, mucronate).
Ecology :
Damp sandy areas; wadi banks; springs; ? up to 2200 m alt. (Chad, Tibesti). A very distinctive sedge, easy to cultivate and tolerant of relatively dry soils, sometimes grown as ‘Variegatus’, with alternate rings of green and yellow tissue on leaf and stem. Fibres also used as tying material.