STRUWIG, M.; SIEBERT, S.J.; JORDAAN, A. Pollen morphology of members of southern African Boerhavia and Commicarpus (Nyctaginaceae). Bothalia, African Biodiversity & Conservation, [S. l.], v. 43, n. 1, 2013. Disponível em: https://abcjournal.org/index.php/BothaliaABC/article/view/203. Acesso em: 7 feb. 2025.