There are nine ribs, which are clear on the upper parts of the shoots, but flat and blunt further down.

From them arise 14 to 18 gray to whitish, aquiline thorns that are darkly tipped.

The funnel-shaped, deep purple-pink to pink or magenta, occasionally white flowers appear on the tips of the shoots and open during the day.

[3] Lobivia caineana is widespread in the Bolivian department of Potosí in the province of Charcas at medium altitudes of around 2000 meters.

[4] The specific epithet caineana refers to the occurrence of the species in the valley of the Río Caine.