Tephrocactus articulatus (Pfeiff.) Backeb. 1953 ( var. strobiliformis
Habitat:Argentina.
Family:Cactaceae.

-The genus name'Tephrocactus'derives from the Greek adjective 'tephros' meaning 'ash coloured' plus the connective vowel 'o' used in botanical Latin for Greek words,and the word 'cactus'(an old genus name).