Machaerocereus gummosus (Stenocereus gummosus)

Stenocereus alamosensis (Octopus cactus). Syn. Rathbunia alamosensis. USDA: 9b-10. Full sun. Little water. Hardy to 28°F. Thicket of bending stems, up to 10 ft tall. Tubular pinkish red flowers, attracts hummingbirds. Origin: Mexico (Chihuahua and Sonora)

Stenocereus dumortieri. (Syn: Isolatocereus dumortieri). USDA: 10. Hardy to 23°F. Full sun. Heat tolerant. Little to moderate water. Fast growing, tree like cactus. Can reach 50' tall. White flowers. Origin: South-central Mexico.

Stenocereus pruinosus. Mexican organ pipe. USDA: 10. Full sun. Heat tolerant. Little to moderate water. Hardy to 23°F. Fast growing to 20' tall. Origin: South-central Mexico.

Stenocereus species mix

Stenocereus thurberi (Arizona organ pipe). Syn: Marshallocereus thurberi. Sunset: 12-24; USDA: 9b-12. Full sun. Heat tolerant. Little to moderate water. Hardy to 24° F. Fast growing, with regular water to 20' tall. Origin: Southern Arizona, northern Mexico.