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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

(First update on June 1 2009. Last on Aug. 30 2009)

Woodrush
Luzula capitata (Miq.) Miq. ex Kom. [Juncaceae]

Suzumenoyari (スズメノヤリ, 雀ノ槍)

Lifeform: perennial grass
Distribution: China - Japan
Habitat: bareground and grasslands in Hokkaido


Luzula capitatas on Mount Usu

ST ST
[Left] This plant was originated from seedbank in the former topsoil under thick volcanic deposits collected in 2008, 30 years after the 1977-78 eruptions. The samples were germinated in a greenhouse. [Rgiht] A inflorescence in the crater basion of Mount Usu on July 14 2009.


References

  • Flora on Mount Usu
  • Tsuyuzaki, S. & Goto, M. 2001. Persistence of seedbank under thick volcanic deposits twenty years after eruptions of Mount Usu, Hokkaido Island, Japan. American Journal of Botany 88: 1813-1817

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