This member of the Euphorbiaceae family was given this name by Werner Rauh in 1992. It is found in south western Madagascar, growing in a well drained soil with some water and some sun. The caudex can grow to four centimetres or more, the whole plant reaches 30 centimetres in height. The flowers are from pale yellow to reddish.
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 from Greek; neos; 'new' to avoid a homonym when a species is transferred from another genera, and after Jean M. Bosser, a French botanist and agronomical engineer.

