[2][3] Echinopsis haematantha grows singly or branching, and then forms small groups, with a large carrot-like taproot.

The short, funnel-shaped, yellow to orange to slightly purple flowers open during the day.

The spherical to egg-shaped, green to purple-brown fruits are semi-dry and tear open.

[4] Echinopsis haematantha is widespread in the Argentine provinces of Salta, Tucumán and Catamarca at altitudes of 2000 to 3000 meters.

[5] The specific epithet haematantha is derived from the Greek words haima for 'blood' and anthos for 'flower' and refers to the dark red flowers of the species.