Northeastern Asian Flora
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Athyrium iseanum Rosenst.   (redirected from: Athyrium iseanum var. angustisectum Tagawa)
Family: Aspleniaceae
[Athyrium dissectifolium Ching, moreAthyrium fasciculatum Nakai, Athyrium iseanum f. angustisectum (Tagawa) Sa.Kurata, Athyrium iseanum var. angustisectum Tagawa, Athyrium iseanum var. chuanqianense Z.R.Wang, Athyrium wuyishanense Ching]
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  • Japan Flora
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Japan Flora: Rhizomes short; fronds tufted; stipes 10-25 cm. long, straw- colored to pale green, sparsely scaly toward the base; scales pale brown, thinly membranous, linear-lanceolate, entire, 2-5 mm. long; blades broadly to narrowly ovate, 15-35 cm. long, 10-20 cm. wide, caudately acuminate, not at all or only slighdy narrowed at base, bipinnate; pinnae 5-10 pairs, broadly lanceo­late or the smaller ones oblong-ovate, 1.7-3 cm. wide, caudately acuminate, short-petiolulate; pinnules oblong-ovate to deltoid- ovate, 1-1.7 cm. long, obtuse to acute, broadly cuneate at base, oblique, rather irregularly lobulate to parted, rarely dissected to the costules, coarsely mucronate-toothed, with a few fleshy deciduous bristles on upper side along the costas; indusia usudly asplenioid, 1-2 mm. long, sometimes also athyrioid, en­tire.   Shaded places in low mountains.

Honshu (Awa, Izu, and Echigo Prov. westw.), Shikoku, Kyushu; rather common. Formosa.

Athyrium iseanum
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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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