Yu, Xun-Lin, Ming Li, Jian-Jun Zhou, and Peng-Wei Li. “Petrocodon hunanensis (Gesneriaceae), a New Species Identified by Both Morphological and Molecular Evidence from Limestone Area in Hunan, China”. Phytotaxa 195, no. 1 (January 22, 2015): 65–72. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.195.1.4.