Hoxey P., Lowry M., A new species of Cumulopuntia (Cactaceae) from north-western Bolivia, Bradleya, 2021, 39:45-53, doi: 10.25223/brad.n39.2021.a6
A description of the new Cumulopuntia flexibilispina from north-western Bolivia. The abstract reports elevations of 4400–4650 m, hemispherical clumps and dense, flexible white spines, and announces a comparison with other high-altitude cumulopuntias. The supplied abstract was used.