Goldblatt, Peter, et al. “A Revised Infrageneric Classification and Synopsis of the Afro-Eurasian Genus Moraea (Iridaceae: Irideae)”. Bothalia, African Biodiversity & Conservation, vol. 43, no. 1, Jan. 2013, https://abcjournal.org/index.php/BothaliaABC/article/view/205.