Orbea sprengeri       (Schweinfurth) Bruyns

DESCRIPTION: Small succulent forming diffuse mats, sometimes rhizomatous. Stems 5-15 cm long, 0.8-1 cm in diameter (excluding teeth), decumbent, grey-green mottled with purple-brown; tubercles 5-13 mm long, arranged into 4 rows along stem, ascending, conical, attenuated to a very fine tip, without stipular denticles.

DISTRIBUTION: Eritrea, Ethiopia, Kenya, Somalia, Sudan; 400-2000 m.