Synotis guizhouensis, S. austroyunnanensis and S. sinica, 1984

Fan, Yu, Wang, Long-Yuan, Zhang, Rui & Tang, Ming, 2022, Notes on the specific identity of Synotis damiaoshanica (Compositae, Senecioneae), with clarification of the confusing identities of S. guizhouensis and S. sinica, Phytotaxa 543 (2), pp. 150-160 : 160

Key to Synotis guizhouensis, S. austroyunnanensis and S. sinica

1. Capitula discoid .............................................................................................................................................................. Synotis sinica

– Capitula radiate...................................................................................................................................................................................2

2. Leaves rosulate or subrosulate at the base of the inflorescence; ray floret 5−9, 8–10 × 2−2.5mm ................... S. austroyunnanensis

– Leaves usually alternate on the stem, rarely subrosulate at the base of the inflorescence; ray florets 3−5, 3–5 × 1−1.5 mm, revolute........................................................................................................................................................................ S. guizhouensis