One does not have to be a linguist to surmise that meloformis means shaped like a melon. Judging from the old synoniems pomiformis and pyriformis, the plants may also resemble an apple resp. a pear.
Usually the stems are single, more or less ball-shaped, to 10 cm tall and in diameter, with mostly 8 ribs and a depressed top.
The plants occur on gravelly flats in the Eastern Cape Province, mainly in and around Grahamstown, Uitenhage and the Coega area.
In ssp. valida (Euph. valida), the stem may become over 30 cm tall and 12.5 cm thick, with a rounded top and harder and more persistent peduncles.