Botanical placement
This name is a synonym under Echinopsis macrogona in the Kew treatment used here.
What the original description records
Britton and Rose described stout, upright or ascending branches, blue-waxed young growth, six to eight rounded ribs and robust brown spines. The original material was collected near Matucana in 1914. Mature flowers were not seen for that description, a useful reminder to distinguish an observed character from an author’s prediction.
Britton & Rose · The Cactaceae, volume 2 (1920), pp. 134–140 ↗
Source codes and named plants
A seed-source reference is not a unique clone identifier. The GeeBee reference shows how several distinct garden names can share a source reference. Retain the full label rather than shortening it to a single code.
Identification limits
Color, spine length and girth respond to age and growing conditions and can overlap between cultivated plants. A photograph can support a description, but it cannot reconstruct missing parentage. Record uncertainty clearly →