Tephrocactus alexanderi

Tephrocactus aoracanthus

Tephrocactus articulatus

Tephrocactus articulatus v. diadematus

Tephrocactus articulatus v. polyacanthus

Tephrocactus atratospinus

Tephrocactus bruchii

Tephrocactus corrugatus

Tephrocactus glomeratus v. longispinus

Tephrocactus molinensis

Tephrocactus papyracanthus

Tephrocactus papyracanthus v. syringacanthus

Opuntia tephrocactus articulatus v strobiliformis (Pine cone). Sunset: 8,9, 11-24; USDA: 8b-10. Full sun. Heat tolerant. Little to no water. Hardy to 22°F. Grows to 1' tall +. White flowers, yellow center. Origin: Argentina.  (Syn.: Tephrocactus articulatus inermis)

Tephrocactus weberi

Thelocactus bicolor. USDA: 9-10. Hardy to 20°F. Light shade (hot gardens), full sun elsewhere. Heat resistant. Some water summer, keep dry during winter dormancy. Globular, usually solitary cactus up to 6" tall and 4" wide. Pink and white flowers. Origin: Chihuahua desert of central and northern Mexico, Texas.

Thelocactus bicolor v mapimiensis

Thelocactus conothele

Thelocactus conothele v. rectispinus

Thelocactus freudenberger

Thelocactus hastifer

Thelocactus lausseri. USDA: 9-11. Hardy to 20°F. Light shade (hot gardens), full sun elsewhere. Heat resistant. Some water summer, keep dry during winter dormancy. Globular, usually clumping cactus each stem up to 4" tall and wide. White flowers. Origin: Mexico.

Thelocactus leucacanthus

Thelocactus macdowelii. USDA: 9-11. Hardy to 20°F. Light shade (hot gardens), full sun elsewhere. Heat resistant. Some water summer, keep dry during winter dormancy. Globular, usually clumping cactus each stem up to 4" tall and wide. Pink flowers. Origin: Mexico.

Thelocactus matudae

Thelocactus panarottoi

Toumeya papyracantha

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.