Treasures of Mt. Takao

Mt Takao is located at the borderline of warm-temperature zone and cool-temperature zone and various plants from both zones grow. There are a lot of naturally grown plants and their visitors can enjoy seasonal flowers. Over 1,500 kinds of plants are confirmed which is relevant to the number of kinds naturally grow in England. Also, over 60 kinds of plants are first found in Mt. Takao such as Takao Sumire (V. yezoensis f. discolor) and Takao Higodai (Saussurea sinuatoides).

Dioscorea japonica(Japanese Yam)
Dioscorea japonica(Japanese Yam) Dioscoreaceae
Perennial herbs vines (grow for several years from their same root system) found in forests in mountains. Fleshy and long cylindrical roots grow underground can be eaten as grated yam. The Japanese name Yamano-imo literally meaning potato in mountains was named because it grows in mountains to distinguish sato-imo taro potato grows in rural area. Also called as Jinenjyo, was also named because it also grow in mountains. Leaves are 5 to 10 cm heart-shaped with pointed tip on long petioles, opposite and some have bulblets at the base. Bulblets are 1 cm in diameter spherical shape and can be eaten stir fly or steamed with rice. Have both male and female flowers. Male flowers grow upright from petioles and bloom 3 mm in diameter white flowers. Female flowers are dropping and randomly bloom 3 mm in diameter white flowers. After flowering, bear fruits with three spherical fins.

●Season  Mid August to about Late September
●Height  Vines
●Place  Trail 1, Trail 4, Trail 6, Ura-Takao, Oku-Takao
※Quotation from Mount Takao formula application
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