[1] Echinopsis chalaensis grows as a shrub with several upright branches and reaches heights of up to 4 meters.

[2] Echinopsis chalaensis is common in the Arequipa region of Peru on coastal hills, where it is often found hanging from rocks.

The first description by Werner Rauh and Curt Backeberg was published in 1957.

The specific epithet chalaensis refers to the occurrence of the species near Chala in the Arequipa region of Peru.

A nomenclature synonym is Echinopsis chalaensis (Rauh & Backeb.)