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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(Update on Sept. 15 2008. Revise on Nov. 5 2009)

Common sowthistle
Sonchus oleraceus L. [Asteraceae]

Nogeshi (ノゲシ, 野芥子)

Life form: annual - biennial forb
Distribution: native to Asia and Europe
Habitat: sunny sites, e.g., waste ground, and roadside verge
Seed dispersal: wind


Sonchus L. in Japan

S. arvensis L. (タイワンハチジョウナ)
S. asper (L.) Hill. (オニノゲシ)
S. brachyotus DC. (ハチジョウナ)
S. oleaceo-asper Makino (アイノゲシ)
S. oleraceus L. (ノゲシ)


Sonchus oleraceus in Hokkaido

ST ST
[Left] a patch. [Right] close-up of flower. At N28/W4, West Ward, Sapporo, on Augsut 30 2009.


References

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