This species is well known from the Cang Shan, near Dali, Yunnan. It grows in mossy crevices of damp limestone rocks. Similar to P. yunnanensis but with a longer corolla tube and obscured veins on the calyx. Leaves obovate to spathulate, rounded at the apex, base tapering into a winged petiole, often short but sometimes as long as the blade, membranous, crenate-dentate at the margin, efarinose or slightly farinose above, densely yellow farinose below. Scape 2-5cm, yellow farinose, with flowers 1-9 violet-rose with a white center and yellow-green eye and exannulate. See related P. scopulorum, P. kialensis and P. yunnanensis.