Heiduk, A. & Styles, D.G. (2023) Ceropegia strophanthiflora (Apocynaceae—Asclepiadoideae)—a magnificent and rare new species from South Africa at the brink of extinction. Phytotaxa 632 (1): 27–37. https://doi.org/10.11646/phytotaxa.632.1.2