This member of the Euphorbiaceae family was given this name by Nicholas Edward Brown in 1915. It is found in Botswana, north-western South Africa and Zimbabwe, growing in a well drained soil with some water and lots of sun. The caudex can grow to four centimetres in diameter, the entire plant to five centimetres in height - unless you expose the caudex. The flowers are greenish 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 is named after Joseph Burtt Davy,1870-1940, who founded what is now the National Hedrbarium in Pretoria. The flowers by Tracy Robb, Inaturalist.org. A wild plant with exposed caudex by Duncan McKenzie, Inaturalist.org.

