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(First upload on October 12 2010. Last on December 30 2015) [ 日本語 | English ]

Cosmos bipinnatus Cav.






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

Cosmos Cav. in Japan


All species have been primarily imported to Japan for gardening.
C. atrosanguineus (Hook.) Voss (チョコレートコスモス)
C. bipinnatus Cav. (コスモス/オオハルシャギク/アキザクラ)
C. sulphureus Cav. (キバナコスモス)

Cosmos bipinnatus in Japan


anime

Kosumosu (コスモス, 秋桜), Garden cosmos (Mexican aster)
O-harusyagiku (オオハルシャギク, 大春車菊)
Life form: half-hardy annual forb
Distribution: originally in central America (extotic to Japan)
Habitat: drained, sunny habitats (ornamental, often transplanted on skislopes)

Field training on integrated environmental research (統合環境調査法実習) (出現種リスト)

Germination: about 10 days at 25°C after sowing
Flowering: two to three months after germination
索引
Varieties (cultivars): Sensation, Versailles and Sonata, Daydream, Seashells, and many others

ST1 ST2 ST3 ST4
[1/2] in front of the rear gate of Hokkaido University of Education at Hakodate on September 21 2010. [3/4] under a street tree at N28/E2, East Ward, Sapporo, on September 24 2015.

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