Huang, Q.-L., Fei, W.-Q., Wu, H.-S., Yuan, Q. and Yang, Q.-E. 2024. Clematis chengguensis and C. retusifolia (Ranunculaceae), both described from Shaanxi of China, are merged with C. armandi, a widely distributed species in the country. Phytotaxa. 669, 3 (Oct. 2024), 211–232. DOI:https://doi.org/10.11646/phytotaxa.669.3.3.