SWANEPOEL, W.; WYK, A. E. V. Petalidium hoarusibense (Acanthaceae), a new species from Namibia. Phytotaxa, Auckland, New Zealand, v. 681, n. 1, p. 1–10, 2025. DOI: 10.11646/phytotaxa.681.1.1. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.681.1.1. Acesso em: 6 dec. 2025.