This study was performed to investigate the flora and plant resources of Mt. Woosanbong (537.8 m) from April to October 2002. The collected vascular plants were composed of all 389 taxa including cultivated species, and classified into 329 species, 2 subspecies, 53 varieties, and 5 forms of 248 genera under 81 families. Six taxa of the Korean endemic plants and 4 taxa of the rare and endangered plants were also distributed in this mount. Resource plants were categorized into edible 181, pasturing 160, medicinal 136, stainable 94, ornamental 77, timber 22, fiber 5 and industrial 4 taxa, respectively. Floristic geography of the investigated area was regarded as the boundary between middle and southern parts in floristic pattern of the Korean Peninsula.