Taxonomy & identification

• Morphology: a columnar cactus 2-5 m tall with stems 15-20 cm in diameter, bearing four to eight ribs, areoles spaced about 1.5-3 cm apart, and honey-to-brown spines ranging from about 0.1 to 7 cm long. [https://en.wikipedia.org/wiki/Echinopsis_lageniformis]
• Flowers are large, white, fragrant, funnel-shaped, nocturnal, and roughly 15-20 cm long. [https://en.wikipedia.org/wiki/Echinopsis_lageniformis]
• Echinopsis scopulicola is listed among the historical synonyms/associated names for E. lageniformis in general references, though its synonymy is treated less consistently than the bridgesii names. [https://en.wikipedia.org/wiki/Echinopsis_lageniformis]
• Echinopsis lageniformis (C.F.Forst.) H.Friedrich & G.D.Rowley is the accepted name to which scopulicola is sunk; POWO lists 14 synonyms total (3 homotypic, 11 heterotypic), reflecting an extensive taxonomic history. [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:132706-1]

Habitat

• It grows at altitudes of roughly 1,000 to 3,300 metres, typically on rocky slopes, ravines and cliffs alongside rivers (notably the La Paz valley) in well-drained stony soils under arid, high-radiation conditions with distinct wet and dry seasons. [https://en.wikipedia.org/wiki/Echinopsis_lageniformis]

Conservation

• The species is assessed as Least Concern (IUCN 3.1). [https://en.wikipedia.org/wiki/Echinopsis_lageniformis]