YU, C.-C.; CHUNG, K.-F. Systematics of Berberis sect. Wallichianae (Berberidaceae) of Taiwan and Luzon with description of three new species, B. schaaliae, B. ravenii, and B. pengii. Phytotaxa, Auckland, New Zealand, v. 184, n. 2, p. 61–99, 2014. DOI: 10.11646/phytotaxa.184.2.1. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.184.2.1. Acesso em: 6 dec. 2025.