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For generations, local ethnic communities have amassed a vast body of traditional ecological knowledge (TEK) on the use of plant resources. Ethnobiologists have recently focused on cross-cultural studies in order to record and measure the processes guiding the evolution of TEK within a specific society; both to preserve it and use it sustainably in the future. The current study documents the TEK of plant resources from five ethnic communities of the Jammu and Kashmir (J&K) region, Western Himalayas. Through semi-structured interviews and group discussions, we recorded a total of 127 plant species used by local ethnic groups for various provisioning services (i.e., medicine, food, fodder, fuelwood, herbal tea) and/or with spiritual significance. Across the ethnic groups, Gujjar reported the highest number of plants (25% species), followed by Pahari (24% species), and the lowest number of plants were reported by Dogra (12% species). Looking at plant uses among different cultural groups, we discovered that, especially, some ritual practices were associated with specific plants. We found a relatively high overlap in the use of specific plants among the ethnic groups, namely Gujjar, Bakarwal, and Pahari. Certain species were found to be common in all cultures due to their food value. The current study is a collaborative effort that includes not only documenting, but also cross-cultural comparisons of the documented species, in order to better understand the diverse traditional plant usage systems. This will not only increase regional understanding of cross-cultural ethnobotany, but it will also open opportunities for local …