The present study was conducted during a period of two years from 2001 to 2003 in trans-himalayan region form Mustang to Dolpa region of west Nepal. The indigenous people were found to be rich in ethnoecological knowledge regarding plant resources. The locals categorized six types of ecological land patterns such as Nakri (forest land), Penhri or pangri or Thakri or dakri (land pattern), Sim (marshy place or wet land), Lung (agricultural land) and Khangri (Snowy land). The people also had the knowledge of plants in population level and species level and had their own way of classifying the plants on the basis of different criteria like presence or absence of flower, habit, habitat, morphology etc.
