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

Dryopteris lacera (Thunb.) Kuntze






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

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)
索引

Dryopteris lacera in Japan


ST1 ST2 ST3
[1-3] on Oshima Island in Matsushima Islands, northern Honshu, on March 21 2016.

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