Compared with P. petelotii in the original description, but with the leaf base obtuse or subround, a cup shaped calyx, 5-6mm, barely parted to the middle. Leaves elliptic to obovate-elliptic or suborbicular, glabrous, margin dentate with lateral veins in 6-9 pairs at a 90 degree angle to the midvein. Scape 5-9 cm, glandular, with an umbel of 2-7 flowers, deep violet, 2-lobed, with a dentate margin. Bracts lanceolate. From mixed forest at 2000 m. In 2022, Dan Wei, et al. proposed that P. nghialoensis is a synonym of P. wenshanensis, at the same time describing a very similar species, P. tsaiana. Currently I have kept these species separate.