Liu, Q., Chen, A.-X., Liao, X.-W., Liu, Q.-R., & Wu, L. (2023). Ophiorrhiza pseudonapoensis (Rubiaceae), a new species from Yunnan, southwestern China. Phytotaxa, 607(4), 228–234. https://doi.org/10.11646/phytotaxa.607.4.1