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"Seitaka-shike-shida" (Deparia dimorphophylla) belongs to the family Woodsiaceae. It is a summer-green fern that is native from Miyagi-Yamagata perefecture of Honshu south to Shikoku and Kyushu in Japan, as well as the Korean Peninsula and China. This fern grows in wed forest floors and it can reach 40-80 cm in height. The leaves are unipennate, ovate-deltoid, gray-bluish green and matte. The leaves have two types, the sterile fronds are larger than the fertile fronds. The petioles are greenish brown with pale-brown lanceolate scales. The pinnae are narrow oblong with acute tips, and bear almost right angle at the rachises. The sori are linear and arranged near the rachises.
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