Meve, U., Heiduk, A., & Liede-Schumann, S. (2020).

A new endemic Vincetoxicum (Apocynaceae) in the Eastern Cape, and a conspectus of the genus for South Africa

. Phytotaxa, 447(3), 185–194. https://doi.org/10.11646/phytotaxa.447.3.4