Euphorbia ephedroides is a rounded shrub, rebranching much. It develops a multitude of stiff to floppy stems.
Small and yellow cyathia or false flowers are grown at stem-tips. The ensuing fruit capsules are mostly green, sometimes red. They are globular sitting on a yellow, saucer-like base of persistent glands.
There is more information and further images of E. ephedroides in the Euphorbia Album on this Site (Frandsen, 2017; Williamson 2010; iNaturalist).