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).

Kerria japonica
Kerria japonica Rosaceae
They are a deciduous shrub that grows wild at humid places along the mountain streams in the mountain areas. They develop like the clump style (Kabudachi: the branched leaves are harvested) with the branches hang over others sideways. Cortexes of young leaves of young trees are bright green and smooth feeling to touch, while the ones of adult trees change to bistered-color wood. The trunk withers in 3 to 4 years to replace with a next new one. The leaves are long elliptically-shaped, about 4 to 8 cm long, 2 to 4 cm wide with the finely long sharp top as well as a scraggly sawtooth (Kyoshi: tooth-like rough part like a saw at the root of a leaf) at the edge. The characteristics of the leaves are thin, and with the leaf veins bulging at the back surface bearing short trichome on them. The blossom season are about April to May and 1 vivid yellow flower blossom on each of a new branch. The flower consists of 5 flower petals, about 3 to 5 cm in diameter. The seeds are long elliptically-shaped about 4 mm long, and 1 to 5 of them grow together in clusters, which are at first tinged with green and get matured to brownish-red in September.

●Height about 1 to 2 m
●Place Ura-Takao, Oku-Takao
※Quotation from Mount Takao formula application
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