Trichocereus.net Cactus Seeds and Database — Trichocereus Species — Trichocereus chalaensis (Rauh & Backeberg) Echinopsis — Trichocereus Chalaensis P.C. Hutchison in Arequipa, Caraveli, PeruTrichocereus Chalaensis P.C. Hutchison in Arequipa, Caraveli, Peru