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Polypodium hesperium : ウィキペディア英語版 | Polypodium hesperium
''Polypodium hesperium'' is a species of fern known by the common name western polypody. It is native to western North America from British Columbia to California, and the Rocky Mountains to northern Mexico, where it grows in rocky habitat types. This is an allopolyploid species of hybrid origin, its parent species being ''Polypodium glycyrrhiza'' and ''Polypodium amorphum''. ==Description== This polypody anchors with a thin, scaly rhizome. It produces oblong leaves 25 to 35 centimeters in maximum length and 7 in width. Each leaf is made up of many dull-pointed linear or lance-shaped segments which may be thin and membranous or firm and leathery in texture, and smooth or serrated on the edges. The underside of each leaf segment has a few brownish, reddish, or nearly black sori, which contain the spores.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Polypodium hesperium」の詳細全文を読む
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