CARTER, S. Some unresolved problems among Somali Euphorbia species. Collectanea Botanica, [S. l.], v. 21, p. 57–66, 1992. DOI: 10.3989/collectbot.1992.v21.93. Disponível em: https://collectaneabotanica.revistas.csic.es/index.php/collectaneabotanica/article/view/93. Acesso em: 28 abr. 2024.