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(Upload on May 31 2016) [ 日本語 | English ]

Dryopteris Adans. (オシダ) Kumawarabi (クマワラビ, 熊蕨), leathery wood fern Lifeform: evergreen perennial fern ≈ 40-80 cm tall Distribution: China - Taiwan - Korea - Japan (south to Miyagi Prefecture, reported from Okushiri Island, Hokkaido) Habitat: forest floor - roadside Scale: red brown - brown ↔ Dryopteris uniformis (Makino) Makino: dark brown Sporangium: producing on the upper part of leaf

Synonyms: Polypodium lacerum Thunb. f. dentata (Koidz.) H. Itô (キレコミクマワラビ) Hybrids: D. × mituii Seriz. (アイノコクマワラビ)

Dryopteris lacera in Japan

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[1-3] on Oshima Island in Matsushima Islands, northern Honshu, on March 21 2016.