Glabrous succulent, up to 150 x 250 mm, with rosette of branches from stout but similar stem, branches ascending, ± clavate-cylindrical, 15-30 mm thick, tuberculate. Leaf-rudiments 5-15 x 1-2 mm, linear, usually with undulate margins. Cyathia on often persistent peduncle 3-16 mm long, 5-6 mm in diam.; glands 5, green to brown, with 2-4 fine processes on outer margins. Flowering time Aug.-Mar. Capsule 6-7 mm in diam., occasionally pubescent.