Wang, L., Luo, H.-Y., Ren, C. & Yang, Q.-E. (2016)

Cremanthodium botryocephalum and C. spathulifolium are both merged with Ligularia lagotis (Asteraceae, Senecioneae)

. Phytotaxa 247 (4): 274–280. https://doi.org/10.11646/phytotaxa.247.4.5