Huernia is a memeber of the Apocynaceae family. Sixty-four species of Huernia are found in eastern and southern Africa, Ethiopia and Arabia. They are low (10 cm) perennials with angular fleshy stems armed with large teeth. The grey-green stems branch from the base forming large clumps. Attractive flowers, 2-3 cm in diameter with short stalks, are produced freely in the summer and autumn from the base or middle of the stems. The flowers which may be red, yellow or brown and often spotted, have a 5-angled margin or are 5-lobed with a characteristic small lobe in the angle between the main lobes. The flowers produce a smell of carrion, the strength and quality of which varies considerably between different species.

Huernia whitesloaniana plants are tufted and usually less than 5 cm high. It is 4-5 angled and strongly toothed. The flowers appearing from near the base of young stems on a short peduncle. The corolla is campanulate or almost tubular 1,5 to 2 cm diameter. Outside smooth heavily purple mottled. Inside irregularly, concentrically red-purple lined below with lines becoming more interrupted above. Plants are found around The Zoutpansberg and Blauwberg in a relative high summer rainfall area. Easy to grow and easy to flower.