Plants perennial herbs, to 30 cm tall. Leaves petiolate; petioles 0.5-2(-3) cm long; blades 1.5-7.5 cm long, 0.8-4 cm wide, lower leaves distinctly larger than the upper, elliptic or obovate-oblong to broadly ovate, margins usally smooth, occasionally crisped, tips obtuse, rounded, or truncate. Inflorescences with 4-7(-11) flowers; pedicels slender, flexuous, extremely variable in length within a single inflorescence. Flowers: calyces linear or lanceolate, 2-3 mm long; corollas rotate, tubes about 1 mm long, funnel-shaped with a slight lip at the mouth, red or purple, lobes 2-3 mm log, ovate, obtuse, yellow sparsely pubescent outside, glabrous or with a few scattered hairs within; corona labes narrowly triangular to ovate below, the free tips subulate, 1-2 mm long the distal portion recurved over the gynostegia; stigmatic head flat, pentagonal.
Cynanchum revoilii grows in red sandy or stony sould in Acacia-Commiphora bush, usually on limestone, at elevations from sea level to 1800 m. It grows in Southern Ethiopia, regions N1-N3, C1-C2, and S1-S2 of the Flora of Somalia, and Kenya. It is called Glossonema revoilii in the Flora of Somalia