Xerophyte

Flowers

These cacti produce gorgeous, night-blooming, white funnel-shaped, fragrant flowers with long tubes 15-22 cm long. Old plant may have many flowers at a time. This species blooms from late spring to all summer long, the flowers open on the morning of the first day and remain opened all the night long but last only one day in full beauty, at the second day they start to wither.

Forma Aurea

The schizochromic form (Echinopsis subdenudata f. cristata aureaSN|17377]]SN|26436]]) has yellow stems due to the absence (or reduced production) of chlorophyll pigments

Spines

Absent.

Stem

Very fat, yellow (quite large for a crested plant ( 8 to 20 cm thick) it can form in age a huge convoluted mound.