Discovered growing with P. muscoides, the two species are similar enough that this was thought to be a variety until more material was obtained. P. tenuiloba is distinguished by efarinose leaves, deeply serrate along the entire margin and by long white hairs on the outside of the corolla (sometimes scape and calyx). Flowers are solitary and the corolla lobes are narrow, deeply parted, with hairs in the throat and in the tube. See related P. muscoides and P. waddellii. Has been confused with P. tenella which has very different leaves. If you have an image of this species from Sikkim, please contact the webmaster.