Trichocereus chalaensis is a Peruvian Trichocereus species that is closely related to Trichocereus glaucus. Its alternative Echinopsis name is Echinopsis chalaensis (Rauh & Backeberg). I treat it as a correct species in the genus Trichocereus until DNA testing is able to disprove this. Right now, the name Echinopsis chalaensis is still formally valid, but it´s…
