Key to Primula sect. Auganthus (adapted from Hu & Kelso 1996):

1. Leaves pinnately lobed to midvein................................................................................................................................... P. filchnerae

1. Leaves pinnately or palmately lobed, lobes not reaching midvein

2. Old leaves falling off, petiole purplish ................................................................................................................................ P. sinensis

2. Old leaves remaining, petiole green

3. Leaf blade base cuneate............................................................................................................................................. P. xingshanensis

3. Leaf blade base cordate to sub-truncate ............................................................................................................................. P. rupestris