An unusual species distinguished by the heavy coating of tomentum on all parts of the plants except the corolla. Leaves suborbicular, base cordate, margin entire or somewhat sinuate, covered on both sides with hairs, very thickly underneath. Scapes to 17cm, with 1-2 umbels of 2-10 pink-purple, emarginate, heteromorphic flowers. Corolla tube 3 X the calyx. Calyx campanulate and parted about to the middle. Capsule globose and included in the calyx. Grows in dense shade on moist cliffs. See related P. persimilis.