VENKATACHALAM, S. K.; KARTHIKEYAN, S. Notes on nomenclature and distribution of some taxa of Piper L. (Piperaceae). Phytotaxa, Auckland, New Zealand, v. 167, n. 2, p. 209–211, 2014. DOI: 10.11646/phytotaxa.167.2.9. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.167.2.9. Acesso em: 6 dec. 2025.