Euporbia restricta
International Succulent Introductions
Plant Introductions of the Huntington Botanical Gardens
It is a small spiny, succulent subshrub, basally branching, from a large tuberous root and usually less than 30 cm tall. The Euphorbia restricta has stems branching freely.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz