This plant was originally collected by Gerhard Marx near Darlington Dam in the Eastern Cape Province of South Africa. This medusoid Euphorbia does not fit in the other species descriptions of this group, although it clearly has an affinity to E. gorgonis, a species that grows much farther west in winter rainfall areas of the Western Cape Province. We are offering it as an undescribed species. The cyathia are yellow. Our plants are seedlings in 2-inch pots.