This survey was conducted in order to investigate the vascular plants of Hak Reservoir Valley in the DMZ Area, Korea. The vascular plants were collected six times (from April 2014 to November 2014) and consisted a total of 238 taxa; 69 families, 172 genera, 206 species, 2 subspecies, 26 varieties and 4 forms. The observed rare plant species as designated by Korea Forest Service were 3 taxa including Carex capricornis Meinsh. ex Maxim., Acorus calamus L., Penthorum chinense Pursh. Endemic plant species were 2 taxa including Salix koriyanagi Kimura, Clematis brachyura Maxim. 17 taxa were listed as specific plant species based on phytogeographical in the investigated area. 25 taxa were recorded as naturalized plants, and their Naturalization Ratio and Urbanization Index were recorded as 10.46%, and 7.78%, respectively. Of the 238 taxa listed; 105 were pasturing plants, 92 edible plants, 76 medicinal plants, 24 ornamental plants, 6 stain plants, 4 timber plants, 2 fiber plants, 2 industrial plants and 55 unknown plants.

• 신현탁(국립수목원 산림자원보존과) | Hyun Tak Shin (Plant Conservation Division, Korea National Arboretum)
• 안종빈(국립수목원 산림자원보존과) | Jong Bin An (Plant Conservation Division, Korea National Arboretum)
• 김상준(국립수목원 산림자원보존과) | Sang Jun Kim (Plant Conservation Division, Korea National Arboretum)
• 허태임(국립수목원 산림자원보존과) | Tae Im Heo (Plant Conservation Division, Korea National Arboretum)
• 권영한(국립수목원 산림자원보존과) | Yeong Han Kwon (Plant Conservation Division, Korea National Arboretum)
• 이윤영(황학산 수목원) | Yoon Young Lee (Hwanghaksan Arboretum)
• 윤정원(국립수목원 산림자원보존과) | Jung Won Yoon (Plant Conservation Division, Korea National Arboretum) Corresponding author