Northeastern Asian Flora
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Arachniodes simplicior (Makino) Ohwi  
Family: Dryopteridaceae
[Arachniodes aristatissima Ching, moreArachniodes calcarata Ching, Arachniodes fujiangensis Ching, Arachniodes jiulungshanensis Ching, Arachniodes liyangensis Ching & Y.C.Lan, Arachniodes parasimplicior Ching ex Y.T.Hsieh, Arachniodes simplicior var. major (Tagawa) Ohwi, Arachniodes tibetana Ching, Aspidium aristatum var. simplicior Makino, Polystichopsis simplicior (Makino) Tagawa, Polystichopsis simplicior var. major (Tagawa) Tagawa, Polystichum aristatum var. simplicius Makino, Polystichum simplicius (Makino) Tagawa, Polystichum simplicius var. majus Tagawa, Rumohra simplicior (Makino) Ching, Rumohra simplicior var. major (Tagawa) H.Ito]
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  • Japan Flora
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Japan Flora: Rhizomes short-creeping, densely scaly, knotty, covered with the basal stubs of old stipes; stipes 30-60 cm. long, straw- colored or pale green, rather densely scaly; scales on stipe and rachis tardily deciduous, broadly linear, 2-8 mm. long, less than 1 mm. wide, gradually narrowed to a filiform tip, ciliate at base, black-brown; blades broadly ovate, 25-40 cm. long, 15-25 cm. wide, pinnate, the lowest pinnae with elon­gate pinnate branches longer on posterior than on anterior side, the terminal pinna coriaceous, linear-lanceolate, 15-25 cm. long, abruptly contracted at tip, acuminate, short-petiolu- late, dark green and lustrous above, paler beneath; pinnae 2-5 pairs, gradually acuminate, short-petiolulate; pinnules oblong- ovate, 1-2.5 cm. long, oblique, obscurely auricled on anterior side, obtuse, spine-tipped and -toothed, sometimes lobulate, glabrate on both sides; sori median, in 2 rows on the pinnules; indusia orbicular-reniform, crenulate, about 1 mm. across.   

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu. China.

var. major (Tagawa) Ohwi. Terminal pinna lanceolate-deltoid, broadened at base, gradually merging into the upper lateral pinnae. Honshu (Kanto Distr. and westw.), Shikoku, Kyu­shu.

Arachniodes simplicior
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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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