Tephrocactus alexanderi Colorado, Argentina PG
1 Tephrocactus alexanderi Salicas La Rioja, Argentina ©JL
Tephrocactus aoracanthus, PG V. Union, San Juan, Argentina
2 Tephrocactus aoracanthus, Cañon de Talampaya, Arg. ©JL
Tephrocactus articulatus paediophilus, Pituil, Famatina, Argentina PG
3 Tephrocactus articulatus paediophilus ©JL coll. P1060656