Northeastern Asian Flora
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Polystichum braunii (Spenn.) Fée  
Family: Dryopteridaceae
[Aspidium braunii Spenn., morePolystichum braunii subsp. purshii (Fernald) Calder & Roy L.Taylor, Polystichum braunii var. purshii Fernald, Polystichum shennongense Ching, Boufford & Shingh]
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  • Japan Flora
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Japan Flora: Rhizomes short, erect, fronds tufted; stipes 5- 25 cm. long, densely scaly, the scales membranous, pale brown, lustrous, spreading, the larger ones ovate to lanceolate,8-15 mm. long, 2-7 mm. wide, abruptly to gradually acuminate, subentire, the smaller ones broadly linear to filiform, 2-4 mm. long, sparsely ciliate; blades broadly lanceolate to narrowly ovate, 25-60 cm. long, 7-22 cm. wide, narrowed at base, the scales on rachis spreading to reflexed, lanceolate to linear, often ciliate at base; pinnae lanceolate, acute to short-acuminate, the lower ones shorter, often slightly deflexed, acute to obtuse; pinnules thickly herbaceous, approximate, obliquely deltoid- ovate to elliptic) 6-15 mm. long, 3-7 mm. wide, with hairlike scales on upper side, with hairlike dilated scales on under side, coarsely spine-toothed; sori in 2 series on pinnules on upper half of blade, nearer the costule than the margin; indnsia flat, 0.3-0.5 mm. wide.  

Hokkaido, Honshu (n. and centr. distr.). Korea, Manchuria, China, Kuriles, Sakhalin, Kam­chatka and Siberia to Europe, and N. America.

Polystichum braunii
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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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