Ancistrocactus uncinatus subsp. crassihamatus (F.A.C.Weber) Doweld in Cactus & Co. 5: 92. 2001
Ancistrocactus uncinatus subsp. crassihamatus in Cactus & Co. 5: 92. 2001
is new combination for Echinocactus crassihamatus in Bois, Dict. Hort.: 468. 1896