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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 December 7 2009. Revise on December 12 2009)

Trigonotis peduncularis (Trevir.) Benth. ex Hemsl.
[Boraginaceae]

Kyu-u-rigusa (キュウリグサ, 胡瓜草)

Lifeform: annual forb
Origin: east Asia (ancientt exotic to Japan)
Habitat: grasslands, cropfields, roadsides, etc.


Trigonotis Steven

T. brevipes (Maxim.) Maxim. (ミズタビラコ)

- var. coronata (Ohwi) Ohwi (コシジタビラコ)

T. guilielmii (A.Gray) A.Gray ex Gurke (タチカメバソウ)
T. icumae (Maxim.) Makino (ツルカメバソウ)
T. nakaii Hara (チョウセンカメバソウ)
T. peduncularis (Trevir.) Benth. (キュウリグサ)
T. radicans (Turcz.) Steven (ケルリソウ)


Trigonotis peduncularis in Hokkaido

ST ST ST
[Left] a lawn. [Center] close-up of shoot. [Rgiht] close-up of inflorescences. [Left/Center] At a roadside of N28/W4, North Ward, Sapporo, on August 30 2009. [Right] At N23/W2, North Ward, Sapporo, on November 19 2009.


References

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