Trichocereus spinibarbis

Trichocereus spinibarbis, or quisco, is a species of cactus found in Chile.

Description
Trichocereus spinibarbis is a compact shrub with a typical height of 80 cm and slightly arched cylindrical stems that are 6 cm in diameter. The plant has 9 obtuse ribs, each 1 cm wide with round and obovate yellow or gray areoles measuring 5 mm in height and 1 cm in width. The stems have 4 central spines, 2–12 cm long, light gray in color with black tips, arranged in a crosswise pattern. Additionally, there are 10-22 radial spines measuring 1-1.5 cm in length, light gray in color with brown tips. The flowers, 13 cm long, have ovaries and floral tubes covered in black hairs. The round fruits are 4 cm in length, containing seeds that are 1.5 mm long and 1 mm wide.

Distribution
Indigenous to Chile, Trichocereus spinibarbis is specifically found in Region II of Antofagasta and Region III of Atacama, at elevations around 200 meters.