Vascular plants of Mt. Dosolsan in the Demilitarized Zone Civilian Control Line

This study is aimed at identifying the distribution of vascular plants growing at Mt. Dosolsan in Yanggu-gun, Gangwon-do. Field surveys were conducted for each season from March 2014 to November 2016. The flora of study area is found to consist of 516 taxa, 91 families, 296 genus, 455 species, four subspecies, 50 varieties, and seven forma. Rare plants were found to be of 31 taxa. Among them, rare plant species consisted of critically endangered species (CR degree): 2 (Lilium dauricum Ker Gawl., Cypripedium macranthos Sw.), endangered species (EN degree): 5 (Loranthus tanakae Franch. & Sav. etc.), vulnerable species (VU degree): 7 (Dryopteris laeta (Kom.) C.Chr. etc.), and least concerned (LC degree): 17 (Botrychium virginianum (L.) Sw. etc.). In all the surveyed areas, a total of 20 taxa (Pseudostellaria setulosa Ohwi etc.) were found to be endemic to Korea. The floristic special plants found in the surveyed areas were two taxa of grade V, 24 taxa of grade IV, and 31 taxa of grade III. The naturalized plants were identified as 15 taxa and included Chenopodium album L., Lotus corniculatus L., Robinia pseudoacacia L. etc.