The small flowers or cyathia of Euphorbia ephedroides grow at stem-tips in cymes of up to four.
Green leaf-like bracts or cyathophylls are present below the flowers, stalked, fleshy and orbicular. The yellow flower colour is mainly present in the five fleshy flat, glands around the other floral parts.
The stalkless fruit capsule is rounded, about 4 mm in diameter with three vertical segment lines across its surface. On the mountain slopes red capsules are found on these plants, elsewhere they are usually green (Frandsen, 2017; Williamson 2010; iNaturalist).