Orbea gilbertii       (Plowes) Bruyns

DESCRIPTION: Small succulent forming loose clumps to 30 cm in diameter, occasionally shortly rhizomatous. Stems 5-14 cm long, 0.8-1 cm in diameter (excluding teeth), decumbent, grey-green flecked with purple-brown; tubercles 5-7 mm long, arranged into 4 obtuse rows along stem with a very slight groove between them, spreading, conical, tapering to a slender tip, without stipular denticles.

DISTRIBUTION: ETHIOPIA. Tigray region, between Mekele and Kwiha