Tachishinobu - Japanese claw fern

Japanese: タチシノブ - たちしのぶ（英語表記）Japanese claw fern

A perennial fern of the Caprifoliaceae family. It is similar to Shinobu, but grows above ground and has large leaves, hence the Japanese name. The rhizomes are creeping and densely leafy. The leaves are finely pinnately divided 3-4 times and entirely glabrous. The spore-bearing leaves are generally large, 40-80 cm long, and the petioles are usually purple-brown. The sporangia are borne opposite each other on the margins of the elongated lobes, and are enclosed in a membranous envelope with the leaf margins folded back. The spores are tetrahedral. It is somewhat common in the shade or sun in warm areas south of Fukushima Prefecture, and prefers well-drained areas such as slopes and rocky areas.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

ホウライシダ科の多年生シダ植物。シノブに似ているが，地上生で，葉も大型なため，この和名がある。根茎は匍匐（ほふく）し，密に葉をつける。葉は細かく3～4回羽状に分裂して，全体無毛。胞子をつける葉は全体に大型で，長さ40～80cm，葉柄は通常，紫褐色に色づく。胞子囊群は細長い裂片の辺縁に向きあって生じ，葉縁が折れかえった膜状の包膜につつまれる。胞子は四面体形。福島県以南の暖地の木陰や日なたにやや普通に見られ，斜面や岩場などの水はけのよい場所を好む。

出典　株式会社平凡社世界大百科事典第２版について　情報

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