Dorstenia foetida Schwein.   

DESCRIPTION: very variable species especially in shape and size of leaves, and length of petioles and stipules. It is a perennial, evergreen or caducous sub-shrub. Stem succulent, may be branched or not. Stem a thick, dark green- to mahogany-colored conical trunk, up to 15 centimeters in diameter and 30-40 centimeters in height, older parts often with peeling bark. The stem bears conspicuous and prominent round scars of petioles, inflorescences and stipules in a spiral pattern. Branches nearly as thick as the stem, up to 1–1.5 cm thick and up to 15 cm tall, with pronounced markings of leaf-, inflorescence- and stipule-scars. Leaves alternate, crowded at the top of stems and branches; stipules subulate from a broad base, 1–2 mm long, mostly long persistent; petiole 1–3.6 cm long, puberulous; blade lanceolate to ovate, obovate or elliptic, 1.8–18 x 1–2.5 cm, cuneate to rounded at the base, rounded, obtuse or acuminate at the apex, with entire, crenulate, crisp or denticulate margins, scabridulous above, sparsely puberulous below.

DISTRIBUTION: Ethiopia, Somalia, Kenya, Tanzania, Saudi Arabia, Yemen and Oman