GONÇALVES, Francisco; TCHAMBA, José J.; GOYDER, David J. Schistostephium crataegifolium (Compositae: Anthemideae), a new generic record for Angola. African Biodiversity & Conservation, [S. l.], v. 46, n. 1, 2016. Disponível em: https://abcjournal.org/index.php/abc/article/view/148. Acesso em: 29 oct. 2025.