Euphorbia quadrata Nel

Monoecious, spineless, glabrous shrub, up to 1.1 m tall, branches 3-6 mm thick, slightly succulent, terete and tuberculate towards tips, later subwoody. Leaves narrowly elliptic to linear, 20-60 x 4-12 mm, on short petiole. Cyathia many around apex of some branches, in groups of 2-6, 4-8 mm diam., with 4 or 5 green glands each toothed along outer margin. Capsule exserted on ascending to recurved pedicel, 8-10 mm diam., glabrous.