Thelocactus conothelus ssp argenteus

Familia: 
Cactaceae
Subfamilia: 
Cactoideae
Tribu: 
Cacteae

Thelocactus conothelus ssp argenteus This species of cactus, which some authors has changed its name to thelocactus macdowellii, lives in arid deserts of Nuevo Leon in Mexico. In the Garden we we still call it after the name on the CITES.