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(Upload on March 19 2025) [ 日本語 | English ]

Dryopteris Adans. (オシダ) Okuyamashida (オクヤマシダ, 奥山羊歯), Amur wood fern Lifeform: summergreen perennial fern Distribution: Far East - northeastern China - Japan (Honshu north to Nagano Prefecture and Hokkaido Habitat: forest floors in subalpine zones

Synonyms: Leptorumohra amurensis (Milde) Tzvelev

Dryopteris amurensis in Hokkaido

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[1-3] along Yatsume-no-sawa valley In a natural forest managed by HU Teshio Expermental Forest Station, northern Hokkaido, on August 17 2005.