Echinopsis backebergii
Echinopsis backebergii is a species of flowering plant in the cactus family Cactaceae, native to eastern Bolivia and southern Peru. It grows to tall and wide, with single or clustered globose stems 4–5 cm thick, with about 15 ribs and covered in grey-brown spines. Large, showy, carmine-red flowers are borne in summer. As the minimum temperature requirement is , in temperate regions it must be grown under glass with heat. The subspecies "E. backebergii" subsp. "wrightiana" has gained the Royal Horticultural Society's Award of Garden Merit.