Echinopsis cinnabarina

Echinopsis cinnabarina grows singly with flattened, spherical, bright green shoots that reach a diameter of up to 15 centimetres (5.9 in). The shoot apex is depressed and not thorny. There are around 20 irregular and crooked ribs, which are clearly divided into crooked cusps. The two to three central spines are slightly curved. The eight to twelve slender marginal spines are slightly curved and 0.6 centimetres (0.24 in) to 1.2 centimetres (0.47 in) long.

The bell-shaped, funnel-shaped scarlet flowers appear on the side or on the shoot shoulder and open during the day. They reach a diameter of up to 4 centimetres (1.6 in).^[5]

The specie was first described by William Jackson Hooker in 1847 as Echinocactus cinnabarinus.^[3][6] The specific epithet cinnabarina comes from Latin, means 'vermilion red' and refers to the color of the flowers.^{[citation needed]} The species was moved to the genus Echinopsis in 1853. In 1922, Nathaniel Lord Britton and Joseph Nelson Rose placed the species in the genus Lobivia.^[3][7] As of November 2025^[update], Plants of the World Online accepted the placement in Echinopsis. The species has many other synonyms.^[3]

Echinopsis cinnabarina is widespread in the Bolivian departments of Cochabamba, Potosí and Chuquisaca, in the Andes at elevations between 2500 and 3400 meters.^{[citation needed]}