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The "Ho-shida" (Thelypteris acuminata) belongs to the family Thelypteridaceae. It is an evergreen fern that is distributed from Fukushima Prefecture of Honshu westward to Shikoku and Kyushu in Japan, as well as the Korean Peninsula, southern China, and the Indochina Peninsula. It grows in mountains and along roadsides, and is 30-80 cm tall. The leaves are bipinnate compound, green, slightly shiny, and papery. There are 10 to 20 pairs of pinnae, and the terminal pinnae are long and slender like the tip of a spear. The leaf surface is hairless. The sorus is circular, with the indisum sparsely hairy and kidney-shaped, and is situated midway between the midrib and the limbus. In Chinese, it is called "漸尖毛蕨" (jian jian mao jue).
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