This member of the Euphorbiaceae family was given this name by Robert Allen Rolfe in 1889. It is found in Kenya, Zambia and Zimbabwe, growing in sand or another well drained soil with some water and lots of sun. The caudex can grow to twelve centimetres in diameter, the branches from ten to 30 centimetres.
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 after Frank Oates, 1840-1875, a British naturalist and African explorer. Branch from Succulent Euphorbias.

