Euphorbia cooperi

This spiny, succulent tree has a grey naked trunk up to 3 m high. Round holes on the trunk indicate where old branches have fallen off. Branches (succulent leaves) are conspicuously 4- to 6-winged and resemble a chunky string of beads.The spines form a spiky margin along each ridge on the branches. The yellowish-green flowers, which are clustered along ridges between the spines, are situated towards the tips of the branches.

Similar plants:

• Euphorbia aeruginosa (Miniature Saguaro)
• Euphorbia bracteata, Pedilanthus bracteatus (Tall Slipper Plant, Slipper Spurge, Candelilla, Little Bird Flower)
• Euphorbia bubalina, Euphorbia laxiflora (Buffalo Euphorbia, Bosmelkbos)
• Euphorbia burmannii (Steenbokbos)
• Euphorbia caput-medusae (Medusa's Head)
• Euphorbia characias (Bush Spurge)
• Euphorbia confinalis (Confinalis, Lebombo Euphorbia, Lebombo Milktree)
• Euphorbia cotinifolia (Red spurge, Mexican shrubby Spurge, Caribbean Copper Plant)
• Euphorbia cyathophora, Euphorbia heterophylla, Poinsettia cyathophora (Summer Poinsettia, Wild Poinsettia, Fire on the mountain)
• Euphorbia decaryi (Euphorbia)