A. Santos-Guerra, J. A. Reyes-Betancort, M. A. Padrón-Mederos, and R. Mesa-Coello, “Little or unknown plants of the wild vascular flora of the Canary Island”, Bot. complut., vol. 37, pp. 99–108, May 2013, doi: 10.5209/rev_BOCM.2013.v37.42274.