Echinopsis peruviana (syn. Trichocereus peruvianus), Peruvian Torch cactus, is a fast-growing columnar cactus native to the western slope of the Andes in Peru, between about 2,000–3,000 m (6,600–9,800 ft) above sea level.

The Peruvian Torch (Echinopsis peruviana) grows high in the Andean mountain deserts of Peru and Ecuador and is similar to the San Pedro cactus (Echinopsis pachanoi) which is found in the same region. The human use of the cactus dates back thousands of years to the northern coast of Peru and the monks of a pre-Inca culture known as Chavín (900 BC to 200 BC). They prepared a brew called "achuma", "huachuma" or "cimora" which was used during ritualistic ceremonies to diagnose the spiritual links to a patient's illness.

The plant is bluish-green in colour, with frosted stems, and 6-9 broadly rounded ribs; it has large, white flowers. It can grow up to 3-6 meters tall, with stems up to 8-18 cm in diameter; it is fully erect to begin with, but later possibly arching over, or even becoming prostrate. Groups of 6-8 honey-coloured to brown rigid spines, up to 4 cm in length, with most about 1 cm, are located at the nodes, which are evenly spaced along the ribs, up to approximately 2.5 cm apart.