Native in Eastern and Southern Africa, Ethiopia and Arabia.
They are low perennials with angular fleshy stems armed with large teeth. The grey-green stems branch from the base forming large clumps. Attractive flowers, are five-lobed and bell-shaped, often striped vividly in contrasting colours. They have short stalks are produced freely in the Summer and Autumn from the base or middle of the stems. The flowers often produce a smell of carrion to attract pollinator flies. The strength and quality of this perfume varies considerably between different species.
Shallow contains, ground cover or hanging baskets.