They are a deciduous shrub that is representative of the trees at Mt. Takao. As the same case with beech trees, they are utilized for materials to make household furniture, apparatus, and resources to build ships. They are, however, crowned in their name ‘Inu’ (a dog) because they are inferior in quality to beech trees. Furthermore, compared to the beech trees, they are tinged with black, It is often that people call beech trees, as ‘Shiro-buna’ (white beech trees), while people call Fagus japonica. As ‘Kuro-buna’ (black beech trees). The trunk grows to be 70 cm wide and shoots a new sprout called ‘Hikobae’ (buds from the base of beech trees) from the root. The leaves are long elliptically-shaped with wavelike sawtooth (Kyoshi: tooth-like rough part like a saw at the root of a leaf) at the edge. Young leaves bear long and soft trichome, but once they grow adult ones the trichome disappears. The blossom seasons are about April to May and hermaphroditism plant (Shiyuudousyu). No sooner the leaves are open than a new spike of male flowers like a hanging fuzzball dangles from the new branch and female flowers sprout at the upper part of the branch. They bear triangle-shaped seeds in autumn.

●Height about 20 to 25 m
●Place Trail 1 and 2, Trail 4