A near-leafless shrub with erect, much-branched, terete, green, spinescent stems. Leaves are linear-lanceolate, sessile, acute and glabrous, borne on juvenile branches. Inflorescence is an axillary, few-flowered umbel-like cyme. Corolla is broadly funnel-shaped, deeply divided into lobes, pubescent on both surfaces. Fruit is a narrowly elliptic follicle, terete and glabrous.
Nile region, Egyptian desert, Res Sea coastal strip, Gebel Elba and Sinai.
Algeria, Libya, Egypt, Palestine, Arabia, Iran, Pakistan, India, Chad, Sudan, Ethiopia, Somalia