This study was to establish the floristic composition of resources vascular plants of Mt. Yongmunsan (1,157m). This work was investigated during the April to September in 2009. Resources vascular plants were composed of 97 families, 267 genera, 351 species, 4 subspecies, 38 varieties and 7 formae, total 400 taxa. Among the investigated resources plants, 11 taxa (2%) were Korean endemic species. The special plants based on floral region by Ministry of Environment were 39 taxa; V grade species 1 taxa, IV grade species 3 taxa, III grade species 6 taxa, II grade species 9 taxa and I grade species 20 taxa. A naturalized plants were 23 species, correspond to 7.93% of total 290 species appeared in South Korea.

This study was performed to investigate the flora of Gangneung-si (Kangwon-do). The collected vascular plants were composed of all 903 taxa including cultivated species, and classified into 755 species, 1 subspecies, 124 varieties, and 23 forms of 450 genera under 126 families. Among the investigated vascular plants, 16 taxa were Korean endemic species. Law-protected plants by Ministry of Environment were 2 taxa. The special plants based on floral region by Ministry of Environment (2006) were 75 taxa; V rank species 2 taxa, IV rank species 9 taxa, III rank species 21 taxa, II rank species 14 taxa, and I rank species 29 taxa. A naturalized plants were 45 species, correspond to 15.5% of totaling 290 species appeared in South Korea. Floristic geography of the investigated area was regarded as the boundary between middle regions in floristic pattern of the Korean peninsula.