Simão, I., Reyes-Betancort, J.A., Talhinhas, P., Morais-Cecílio, L. and Silveira, P. 2024. Taxonomic revision of the genus Calendula (Asteraceae) in the Canary Islands. Phytotaxa. 640, 2 (Mar. 2024), 125–160. DOI:https://doi.org/10.11646/phytotaxa.640.2.3.