Soehrensia bruchii

Soehrensia bruchii, is a species of Echinopsis found in Argentina.

Description
Soehrensia bruchii usually grows solitary. The depressed globular shoots are dark green reach a diameter of 20-30 (50) cm and 50-70 cm tall. There are 15-50 low, distinct ribs that are somewhat inflated or bumpy between the areoles. The areoles on it are white with 2-4 central spines and  8-10 radial spines that are yellowish or brown.

The deep red flowers appear near the top of the shoots and open during the day. They are 4 to 5 cm long and have the same diameter.

Distribution
Plants are found growing in Argentina in Catamarca, Jujuy, La Rioja, Mendoza, Salta, and San Juan at elevations of 1700 to 3500 meters.