(First upload on November 19 2016. Last on February 11 2022) [ 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) > Woodsiaceae (イワデンダ科) > Athyrium yokoscense
Athyrium Roth (メシダ)Hebino-negoza (ヘビノネゴザ, 蛇ノ寝茣蓙/蛇ノ寝御座)Kanayamashida (カナヤマシダ): establishing well on heavy-metal soils Lifeform: summergreen fern, developing short rhizomes Distribution: central and eastern China - Manchuria - Amur - Siberia - Sakhalin - Korea - Japan - southern Kuril Flora on Mount Koma |
Habitat: diverse, e.g., common in forest floors and edges, rocky sites, and post-mined sites Morphology: highly variable Chromosome number: n = 40 Synonyms:
Athyrium yokoscense (Franch. et Sav.) Christ var. fauriei (Christ) Tagawa f. dilatatum (Tagawa) Sa. Kurata (ヒロハヘビノネゴザ) |
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[1] on the middle slope of Mount Mashu, eastern Hokkaido, on June 26 2019. [2/3] in a foerst at the second station on Mount Apoi (アポイ岳), central southern Hokkaido, on June 15 2016. [4-6] at Tarumae Service Aera along Hokkaido Expressway on September 11 2017. [7] on the southwestern slope of Mount Koma, southern Hokkaido, on September 8 2020. [8/9] along a trail in Togendai, Hakone, central Honshu, on August 21 2021. Records: near the former skislope for the Winter Olympic Games on Mount Eniwa beside Shikotsu Lake on August 27 2022.