Lophocereus schottii (Senita). Organ pipe cactus. Sunset: 12-13, 16, 17, 21-24; USDA: 9-11. Full sun. Heat tolerant. Little water. Hardy to 18°F. Branching cactus, each stem can grow to 28' tall, 10" diameter. Small white flowers. Origin: AZ, northwest Mexico
Lophocereus schottii 'mieckleyanus' (Thin senita form). Organ pipe cactus. Sunset: 12-13,16,17,21-24; USDA: 9-11. Full sun. Heat tolerant. Little water. Hardy to 18°F. Each stem can grow to 20' tall, 4-6" diameter. Origin: Arizona, northwestern Mexico.
Lophocereus schottii monstrose 'mieckleyanus' (Thin totem pole). Sunset: 12-13,16,17,21-24; USDA: 9-11). Mutated form of Lophocereus schottii. Full sun. Heat tolerant. Little water. Hardy to 18°F. Grows to 20' tall; 8' diameter. Origin: Arizona, northwestern Mexico
Lophocereus schottii v. monstrose (Totem cactus). Sunset:12-13,16,17,21-24; USDA: 9-11). Mutated form of Lophocereus schottii. Full sun. Heat tolerant. Little water. Hardy to 18°F. Grows to 26' tall. Origin: Arizona, northwestern Mexico
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 marginatus (Mexican fence post / Organ pipe cactus). USDA: 9b-11. Full sun. Heat tolerant. Little water. Hardy to 23° F. Grows to 20' tall. Origin: Central Mexico
Stenocereus pruinosus (Stenocereus griseus). 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 thurberi (Arizona organ pipe) Sunset: 12-24; USDA: 9b-12. Full sun. Heat tolerant. Little to moderate water. Hardy to 24°F. Fast growing to 20' tall. Origin: Southern Arizona, northern Mexico.
