Nepal Himalayas have been known as a rich source for valuable medicinal plants since Vedic periods.  Ethno-pharmacological knowledge is common and important among the tribal people but much of the  information  is  empirical  at  best  lacking  logical  validation.  A  number of ethnic communities residing in the countryside and mountain area are partially or fully dependent on the forest resources to meet their requirements.  The diverse ethnic communities such as tamang, newar, magar, chhetri, pariyar, biswakarma, and tolange have a good association with plants and their potential role they use for different purposes treatment of various ailments, economic and other values, and worship in different religions and customs. The traditional knowledge on the utilization of these ethno-pharmacological plants is widely accepted by these indigenous people.

The use of plants as medicine is widespread throughout the world. The plant and plant products have augmented human culture since time immemorial. But few people realize that plant species are an important part of our environment (Singh, 1993). Traditional medicine practices and ethno-pharmacological information play an important role in the scientific research,  particularly  when  the  literature  and fieldwork data  have  been  properly evaluated. The documentation of indigenous knowledge on the utilization of local plant resources by different ethnic groups or communities is one of the main objectives of ethno-pharmacological research (Shrestha, 1998). In general, ethno-pharmacological studies focus on the indigenous people and the minorities. Indigenous people are the ones who were the original inhabitants of any place and live a life of their own which is of self-sufficient type with no foreign involvement. Indigenous knowledge systems are not only for the cultures from which they evolve, but also for scientists and planners striving to improve conditions in rural societies (Shengji, 1999). The rural people have developed unique indigenous knowledge related to the uses of plant resources due to constant association with the forests. This existing valuable information is needed to be documented before lost or disappeared. As there is lake of the documentation system, priority should be given to develop a system for the systematic recording of the information related to the ethno-pharmacological uses and indigenous knowledge of the medicinal plant species. Ethnic people  have  immense  plantlore,  folklore  which  they  pass  on  from  generation  to generation just through oral conservation (Rao & Shanpru, 1981 & Chhetri, 1994).

Nepal is one of the rich mega-biodiversity countries of the world having wide variety of plants  with  medicinal  value.  Herbal  medicines  have  good  values  in  treating  many diseases including infectious diseases, hypertension, that they can save lives of many, particularly in the developing countries, is undisputable. Ethnobotany is a relatively new field of study in Nepal, as it is in many other developing countries. It has taken its own way of development, depending on local traditions. It is known that the way of administration to cure diseases using a particular plant widely differs among the indigenous people and also Healers, Jhakaris and Amchies (Manandhar, 2002, Shrestha & Dhillion, 2003).