The cyathia of Euphorbia glanduligera are small, yellow and green, subtended by leaf-like bracts. They grow in small, stem-tip clusters or solitary. The bracts are shorter than the normal leaves, but similarly shaped.
The fruits are ovoid green capsules, in the photo showing a rough surface, covered in white mottling and a bit of the persistent stigma protruding at the tip.
This plant was seen near the Gariep River in April (Encyclopedia of Life; iNaturalist; iSpot; https://www.selinawamucii.com).