An ethnobotanical survey was carried out in the region called Pallars-consisting of two districts, Pallars Sobira and Pallars Jussa-, situated in the Central Pyrenees, in North West Catalonia (Iberian Peninsula), with an approximate area of 2530 km 2 and a population of 19 000. Through interviews with 264 people, we obtained data on 437 plant species used for health care. We detected 867 unreported or uncommon uses corresponding to 272 plant species, 52 of which had never or very rarely been cited as medicinal. This is the second paper of a series intended to present the most important findings concerning the ethnopharmacology of the area studied; it includes unreported or very uncommon uses of known medicinal plant species. A previous paper reported the general results and the new or very scarcely reported medicinal vascular plants, and a further one will deal with medicinal non vascular plants.