Larridon I., Walter H. E., Guerrero P. C., Duarte M., Cisternas M. A., Peña-Hernández C., Bauters K., Asselman P., Goetghebeur P., Samain M. S., An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama desert, American Journal of Botany, 2015, 102(9):1506-1520, doi: 10.3732/ajb.1500168
The study brings together three chloroplast DNA regions, morphology and the distribution of Copiapoa. It discusses species boundaries, recurrent similarities in growth form and the consequences of classification changes for threat assessment.