Cactaceae

Tacinga
Tephrocactus
Thelobergia
Thelocactus
Thelocephala
Thrixanthocereus
Timmermansara
Torreycactus
Toumeya
Trichocereus
Trichoechinopsis
Tricholobiviopsis
Trichopsis
Trochilocactus
Tunas
Turbinicarpus