The present paper represents the indigenous knowledge on the utilization of various plant species as herbal medicines among nomadic tribe Gujjar of Sub-Himalayan tracts of Uttarakhand. The Gujjars inhabit in the forests of Himalaya with their livestock, hence, called as Van-Gujjars. They are completely dependent on the surrounding vegetational wealth for various substantive,requirements including treatment of different ailments through their inherital traditional knowledge. The following study is based on extensive field surveys, interviews with the community, particularly the elder traditional practitioners and women folk. In the following text ethnomedicinal information on 46 plant species, belonging to 25 families, used by this tribe of Sub-Himalayan tracts has been included.