Information

Bark black, grey or brown (yellow to greenish and powdery on branches in sp. 40 only). Flower-heads not panicled; involucel usually in lower half of peduncle, rarely higher. Flowers white, pink, cream or very pale yellow. Pods dehiscent, straight or only slightly curved, flat, papery to subcoriaceous. Seeds olive-brown or brown, compressed, subcircular or elliptic, smooth; areole variable in size. Trees or sometimes shrubs.