Echinopis toralapana / Echinopsis calorubra are part of the Echinopsis obrepanda complex. It has purplish flowers and is an amazing father for the genus Trichocereus. It was involved in classic hybrids like SAARWELLEN or LEICHTE FEDER and often produces offspring with a similar flower color.
Cactus Jerk / Trichocereus.net 