"Giant Club" Cactus – New York Botanical Garden, New York, New York

Cereus hildmannianus has a tree-like growth habit with a distinct trunk after which it branches freely up to 10 m (33 ft) high. Its stems are up to 15 cm (6 in) across, have 4–6 ribs and are divided into segments. They are blue-green in colour when young, becoming duller green with age. Stems are usually spineless (except in subspecies uruguayensis). The white flowers are very large, up to 25–30 cm (10–12 in) long, and are followed by fruits which are red when ripe.