An endemic species of Scleria (Cyperaceae) from Cameroon, Scleria cheekii Bauters, is described as new to science. Scleria cheekii is an annual known from basalt pavements in the Bamenda Highlands in Cameroon. It can be distinguished from related species by the presence of tuberculated yellow-orange translucent tissue covering the trigonous stipe. This species is described, illustrated and compared with morphologically closely allied species.