The spherical, gray-green shoots reach diameters of up to 12 cm (4.7 in) and heights of up to 8 centimeters.

The single black central spine is up to 0.2 cm (0.079 in) long.

The long, tube-shaped, funnel-shaped flowers are light pink.

Zdenĕk Fleischer attributed the name to the Czech Alberto Vojtěch Frič.

However, according to Article 8.4 of the International Code of Botanical Nomenclature, Echinopsis werrmannii has not been validly published because the type specimen on which the first description is based has not been permanently preserved, for example through a herbarium specimen.