(First upload on June 6 2009. Last on July 8 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) > Urticaceae (イラクサ科) > Urtica platyphylla
Urtica L. (イラクサ)Ezo-irakusa (エゾイラクサ, 蝦夷刺草)Lifeform: perennial forb, with 50-80 cm tall Distribution: China- Japan Habitat: woodlands - forests |
Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) Poison: leaves and stems have stinging hairs, causing irritation to skin |
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[1-4] at Keiteki-no-Mori forest (恵迪の森) in the campus of Hokkaido University. [1] a grassland completely dominated by this species on May 15 2014, after a huge gap was developed by Typhoon 18 in 2004. [2/3] on July 23 2009. Just flowering. Do not touch! [4] at a forest edge near Akkeshi Marine Experimental Station, eastern Hokkaido, on July 1 2014. [5/6] near a transplanted forest of Fraxinus mandshurica in the Experimental Forest of the University of Tokyo, Furano, central Hokkaido, on June 28 2017. (6, see the diverse leaf shapes.) [7-9] along the Horonai River in the ToEF-HU on June 29 2022. Records: along the Horonai River on June 27 2023.