Peniocereus greggii v. transmontanus. USDA: 9-10. Light shade to full sun. Heat resistant. Little water required. Hardy to 20°F. Grayish green trailing stems reaching 10 or more feet, often growing into trees. Strongly scented white flowers. Collected Maricopa county AZ

Pfeiffera gracilis

Pfeiffera ianthothele

Pfeiffera mataralensis

Pilosocereus chrysacanthus v rubrispinus.

 Pilosocereus chrysostele. 

Pilosocereus gounellei. USDA: 10-12. Hardy to 30°F. Light shade. Heat resistant. Regular water summer, keep dry during winter domancy. Tree like cactus, up to 14 feet tall  20' tall. Clusters of pink flowers. Origin: Brazil.

Pilosocereus leucocephalus  

Pilosocereus piauhyensis.

Pilosocereus species mix

Polaskia chende. (Synonyms: Myrtillocactus chende, Cereus chende, Cereus delmoralii, Heliabravoa chende, Lemaireocereus chende) 

Polaskia chichipe. 

Pyrrhocactus andicolus