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(Upload on March 28 2013) [ 日本語 | English ]

Dryopteris Adans. (オシダ) Tougokushida (トウゴクシダ, 東谷羊歯), wide-leaf autumn fern (not fixed) Lifeform: evergreen perennial fern < 1 m high Distribution: Probably endemic to Japan (but not in Hokkaido) Habitat: (secondary) forest floor in montane zones Morphology: often confusing with D. erythrosora Chromosome number: n = 123 (3x)

Synonyms: Dryopteris cystolepidota (Miq.) C. Chr. sens. auct. Dryopteris erythrosora (D. C. Eaton) Kuntze var. dilatata (Koidz.) Sugimmoto

Dryopteris nipponensis in Japan

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[1-3] on a trail to go Mount Yatsu near Shizuoka Gokoku Shrine*, Shizuoka Prefecture, on March 5 2013. (*: Shinto shrines designated as places of worship for those who died in the war)