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- The flora of vascular plants of these sites were listed 272 taxa; 80 families, 193 genera, 234 species, 32varieties, 5 forms and 1 hybrid. The naturalized plants were 12 taxa, and naturalization rate was 4.4%. Specific plants byfloral region were total 54 taxa; 4 taxa in class Ⅳ, 10 taxa in class Ⅲ, 5 taxa in class Ⅱ, 35 taxa in class Ⅰ. There is notaxa in class Ⅴ. A peculiar point is that we found more than 30 Allium pseudojaponicumin Alliumgenus which isknown as Japanese endemic plant. In Gokdudo, there is large Carex boottianacommunity, in Daehangdo, Machilusthunbergiicommunity covers the whole island. In Bulgeundo, most of the hundreds of trees including Neolitsea sericeaand Machilus thunbergiiplanted by Korea National Parks in 2003 have been damaged by rabbits.Key words - Allium pseudojaponicum, Desert Island, Specific plants, Vascular plants