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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. 13 2009)

Bushkiller
Cayratia japonica (Thunb.) Gagnep. [Vitaceae]

Yabugarashi (ヤブガラシ, 藪枯らし)

Lifeform: perennial vine
Distribution: widespread in Asia
Habitat: forest gap - shrub - grassland


Cayratia (Baker) Suess. in Japan

Two species

C. japonica (Thunb.) Gagnep. (ヤブカラシ)
C. yoshimurai (Makino) Honda (アカミノヤブカラシ) [not in Hokkaido]


Cayratia japonica in Hokkaido

ST ST
[Left] a bush made by C. japonica. [Right] close-up of leaf.

ST ST
[Left] An inflorescence. [Right] A bee feed on honey. All photos were taken at the edge of Keiteki-no-mori forest in Hokkaido University campus on August 31 2009.


References

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