(First upload on March 24 2012. Last on March 6 2018) [ 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) > Asteraceae (キク科) > Sonchus asper
Sonchus L. (ノゲシ)Oni-nogeshi (オニノゲシ, 鬼野芥子), prickly sowthistleEtymology: oni (ogre) + nogeshi (Sonchus oleraceus) Lifeform: annual/biennial forb Distribution: native to Europe (now widespread exotic to the world, including Japan) |
reported in Meiji Era Habitat: roadsides, crop fields, etc., as a weed (雑草)Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) Leaf: spines on the margins and beneathSeed dispersal: wind ⇔ Sonchus oleraceus L. (ノゲシ) |
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[1] at Teshio River, northern Hokkaido, on June 16 2011. The plant was dwarf, due probably to strong wind. [2/3] along the Route 5 between Oshamanbe and Yakumo on June 18 2014. [4] at Oshamanbe Amedas Station, southern Hokkaido, on June 15 2015. [5/6] at a location planned a wind power in Kamiyuchi, northern Hokkaido, on November 1 2017. Records: at the backyard of Institute for the Advancement of Higher Education, Hokkaido University, on May 5 2023.