Northeastern Asian Flora
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Adiantum pedatum L.  
Family: Pteridaceae
[Adiantum boreale C.Presl, moreAdiantum pedatum var. aleuticum Rupr., Adiantum pedatum var. glaucinum Christ, Adiantum pedatum var. kamtschaticum Rupr.]
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  • Japan Flora
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Japan Flora: Rhi­zomes short-creeping, with dark brown, lustrous, narrowly lanceolate scales 4-5 mm. long; fronds glabrous throughout, deciduous; stipes dark purple to purple-brown, lustrous, smooth, 20-50 cm. long, 2-3.5 mm. across at base, bifid at apex; blades flabellate, pedately divided, bipinnate; pinnae 8- 23, short-petioluled, linear-lanceolate, 18-30 cm. long in the median, 2-4 cm. wide, obtuse, the rachis purple- to red-brown, lustrous, nearly terete; pinnules many, membranous, spreading, subovate, obtuse, straight to slightly recurved and entire on posterior margin, truncate to convex and lobulate on anterior margin, somewhat glaucous beneath, very short-petiolulate, slenderly veined; sori few on the anterior margin of the pin­nules, solitary on a lobule; false indusia transversely oblong to lanceolate, about 1 mm. long, 1.5-3 mm. wide, hyaline on mar­gin. June-Oct. Woods in mountains.

Hokkaido, Honshu, Shikoku; rather common. China, Korea, Manchuria, e. Si­beria, Sakhalin, s. Kuriles, Kamchatka, and N. America.

Adiantum pedatum
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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