CHEEK, Michael D.; CROUCH, Neil R. Assessment of the invasive status of newly recorded cactus species in the central Tugela River basin. African Biodiversity & Conservation, [S. l.], v. 45, n. 1, 2015. Disponível em: https://mail.abcjournal.org/index.php/abc/article/view/157. Acesso em: 2 may. 2026.