This member of the Euphorbiaceae family was given this name by Philip Miller in 1768. It is found in southern South Africa, growing in a well drained soil with some water and some to lots of sun. The caudex can grow to ten centimetres in diameter, with the branches, it reaches a diameter of 30 centimetres. The flowers are from almost white to yellow.
The genera name; Euphorbia dates back to the first century BC, where King Juba II of Mauritania used it in a reference to his doctor, Euphorbos, and that name was kept as a generic name by Carl von Linnaeus. The species name meaning 'unarmed' for the absent or short spines.

