Flora of the ashoro research forest, Kyushu university.
Flora of vascular plant in Ashoro Research Forest, Kyushu University located in eastern Hokkaido Island was surveyed. During 2017 to 2019, the cool temperate deciduous forest, conifer plantations, forest edge, road shoulder and timber yard were investigated. A total of 556 species including 51 pteridophtes, 14 gymnosperms and 491 angiosperms were recorded. This flora list included 3 near threatened species, 17 vulnerable species, 2 endangered species and 1 critically endangered species. Compared to the 1951' survey, 226 species were newly recorded, whereas 74 species were not observed. The number of alien species increased from 21 to 66, although they distribute only in forest edge, road shoulder and timber yard.