A detailed study was carried out during 2017-2019 to record information on traditional knowledge of ethno medicinalplants used by the local community for treatment of various human disorders of Terich Valley Hindukush Range, District Chitral. Data about medicinal plants were collected from local community through open ended questionnaires, corner meetings, interviews and group discussion. A total of 64 ethnomedicinal plant species belonging to 56 genera and 31 families was documented, in which the herb species (39) dominated the list followed by trees (14) and shrubs (11). Family importance value (FIV) indicated that Asteraceae (8 species, 12.5%) was the leading family that contributed the largest number of species, followed by Apiaceae (7 species, 10.93), Rosaceae (6 species, 9.37%) and Lamiaceae (4 species, 6.25%) respectively.From the result it was recorded that leaves and fruits are the frequently used plant parts in the preparation of medicinal plantrecipes. It was concluded that over-harvesting, excessive use, habitat loss, degradation, deforestation, agriculture expansion, overpopulation, invasion of invasive alien species andover grazing are the prominentstresses to the medicinal plant biodiversity of the valley. From this study, it was recommended that community awareness and conservation strategies about medicinal flora among the local inhabitants is very necessary for sustainable livelihood security of Terich Valley.
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