Related species include poinsettia, caster-oil-plant (yummie!) and croton.
Plant is classed as a dicotyledon, leaves not parallel veined.
Leaves are roundish, up to 2 inches long, and stems are thorny.
Flowers occur in pairs on leafless stems held above leaves, up to 1 inch wide.
Flowers are not fragrant.
Named after Euphorbus, the physician to the king of Mauritania, Juba.
In addition to the many ornamental species in this family, others yield rubber, edible fruits and roots and have valuable medicinal properties.
Many Euphorbia species have been shown to cause dermatitis related problems with some individuals but the precise potential reactions (if any) from this species have not been located to date in the literature.