Distribution of Vascular Plants in the Ulleung Forest Trail Area, Korea

The study conducted on-site investigation of vascular plants living in the Ulleung forest trail area for total 9 times from March 2009 to October 2011. Investigated vascular plants include total 454 taxa; 103 families, 296 genera, 364 species, 72 varieties, 15 forma and 3 subspecies. When dividing into each area of the forest trail, there were 85 families, 211 genera, 246 species, 41 varieties, 2 forma and 2 subspecies, total 291 taxa in the Seokpo-Naesujeon section, 68 families, 150 genera, 169 species, 26 varieties, 2 forma and 2 subspecies, total 199 taxa in the Namyang-Taeharyeong section, and 85 families, 194 genera, 219 species, 36 varieties, 7 forma and 2 subspecies, total 264 taxa in the Witonggumi-Naesujeon section, confirming that there were the most vascular plants in the Seokpo-Naesujeon section. Endangered wild plant designated by the Ministry of Environment was 1 species, Cotoneaster wilsonii, and scores of this plant were found around Dodong. Rare plants are total 31 taxa, Korean endemic plants are total 28 taxa, and specific plant species are total 91 taxa. Naturalized plants are total 25 taxa, and 38.64% of the whole naturalized plants in Ulleung-do are spread over these areas. As a result of comparing the Ulleung forest trail area, distribution of vascular plants is the highest in the Seokpo-Naesujeon section while all rare plants, endemic plants, specific plants and naturalized plants are distributed the most in the Witonggumi-Naesujeon section.