Trichocereus boliviensis.

Trichocereus bridgesii (Sunset: 16,17,21-24; USDA: 9-11) Full sun to light shade. Heat tolerant. Low water. Clustering columnar cactus, grows to 8' tall. Hardy to 20°F. Origin: Bolivia.

Trichocereus chilensis (Sunset: 16,17,21-24; USDA: 10-12). Full sun to light shade. Heat tolerant. Low water. Upright cactus, grows to 25' tall. Large white flowers. Hardy to 25°F. Origin: Chile. 

Trichocereus chilensis v. borealis

Trichocereus escayachensis. 

Trichocereus huascha. (Bright yellow flowers). Sunset: 3-24; USDA: 9-10.  Hardy to 15° F.  Full sun to light shade. Heat tolerant. Low water. Basally branching, up to 2 feet tall. Vivid red flowers. Origin: Argentina. HV1897a

Trichocereus macrogonus. Sunset: 16,17,21-24; USDA: 10-12. Hardy to 25° F.  Full sun to light shade. Heat tolerant. Low water. Branching, up to 16' tall. Large white flowers. Origin: Peru. 

More under Echinopsis listing. Trichocereus 'San pedro'. Sunset: 16,17,21-24; USDA: 8b-10. Full sun to light shade. Heat tolerant. Low water. Columnar, clustering cactus grows to 15' tall. Large white flowers. Hardy to 22° F. Origin: Ecuador and Peru. 

Trichocereus 'Huancabamba'  Trichocereus pachanoi Huancabamba. Syn: Echinopsis Huancabamba

Trichocereus pasacana. Sunset: 16,17,21-24; USDA: 10-12. Hardy to 25° F.  Full sun to light shade. Heat tolerant. Low water. Columnar, golden cacti, branching at base and stem up to 24' tall. Saguaro-like appearance with age. Large white flowers. Origin: Chile, Argentina, Bolivia.

Trichocereus peruvianus (Torch cactus). Sunset: 16,17,21-24; USDA: 8b-10. Full sun to light shade. Heat tolerant. Low water. Columnar, clumping cactus grows to 16' tall. Hardy to 18 F. Large white flowers. Origin: Ecuador and Peru.

Trichocereus peruvianus 'Longispinus' – Seeds originally collected from Cusco, Pisac, Peru at 2800m altitude. Most likely a T. cuzcoensis variety. Sold as Trichocereus peruvianus or Trichocereus cuzcoensis on the open market

Trichocereus poco. Syn: Trichocereus Poco (Echinopsis Tarijensis ssp. tarijensis) Synonyms: Trichocereus Poco, Echinopsis Poco, Helianthocereus poco.

Trichocereus Special Mix. A mix of equal quantities of the following 5 varieties. Trichocereus 'San pedro', Trichocereus Huancabamba, Trichocereus macrogonus, Trichocereus peruvianus 'Longispinus, Trichocereus peruvianus

Trichocereus species mix. Mix varies from batch to batch. Contains the following species,  andalgalensis, aucapata, bertramianus, smirzianus, strigosus, candicans, escayachensis, grandis, hybrids and others.