The key distinguishing characteristic is the general hirsuteness of the plant, being covered with pale-brown septate hairs quite unlike those usually found in the Davidii Section and without the basal bud scales usually found in that section at flowering. Leaves are up to 5cm long, oblong to ovate, rounded at the apex, with short winged petiole and a crenate-serrate margin. The flowers are blue to deep violet and exannulate with obovate entire corolla lobes and with a tube that is hairy inside. See related P. taliensis.