Li, C.-S., Wu, H.-S., Fei, W.-Q. & Ren, C. (2022)

Clarification of the taxonomic and nomenclatural confusion about Arnica japonica L. f. and A. japonica Thunb. (Asteraceae: Senecioneae)

. Phytotaxa 570 (2): 217–222. https://doi.org/10.11646/phytotaxa.570.2.7