Goldblatt, Peter, and J.C. Manning. “Systematics of the Hypervariable Moraea Tripetala Complex (Iridaceae: Iridoideae) of the Southern African Winter Rainfall Zone”. Bothalia, African Biodiversity & Conservation 42, no. 2 (December 9, 2012). Accessed February 7, 2025. https://abcjournal.org/index.php/BothaliaABC/article/view/274.