BORUAH, B.; KUMAR, A. .; DAS, A. Cirsium wallichii DC. (Asteraceae): a key nectar source of butterflies. Journal of Threatened Taxa, [S. l.], v. 12, n. 14, p. 17049–17056, 2020. DOI: 10.11609/jott.6008.12.14.17049-17056. Disponível em: https://threatenedtaxa.org/index.php/JoTT/article/view/6008. Acesso em: 23 jan. 2022.