(Upload on October 1 2017) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Dryopteridaceae (オシダ科) > Polystichum munitum
Polystichum Roth (イノデ)Western swordfernLifeform: rhizomatous, evergreen fern Distribution: western North America (Alaska - California) Habitat: understory of moist coniferous forests (a well-drained acidic soil of rich humus and small stones) |
Sorus: round Synonyms: var. incisoserratum (D. C. Eaton) Underw., discarded |
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[1-3] at Yamhill Histric District, Portland, Oregon, on August 9 2017.