(First upload on November 1 2016. Last on August 4 2025) [ 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) > Fern (シダ類) > Dryopteridaceae (オシダ科) > Dryopteris sabae
Dryopteris Adans. (オシダ)Species epithet: sometimes spelled sabaei (Franch et Sav.) C. Chr.Miyamaitachishida (ミヤマイタチシダ, 深山鼬羊歯), wood shield fern Lifeform: evergreen perennial fern, producing short rhizomes Distribution: endemic to Japan (Kyushu - central and southern Hokkaido) Habitat: (mesic) forest floors |
Leaf: blade (35-45 cm long, 15-20 cm wide) ≈ 2 × stalk length Chromosome number: n = 41 (2x) |
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[1-6] in a foerst between the second and third stations on Mount Apoi (アポイ岳), central southern Hokkaido. [1-5] on June 15 2016. [6] on June 24 2025.