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(First upload on November 16 2009. Last on December 4 2014) [ 日本語 | English ]

Bidens L. (センダングサ) Amerikasendangusa (アメリカセンダングサ, 亜米利加栴檀草), (devil's) beggartick Seitakataukogi (セイタカタウコギ, 背高田五加木) Lifeform: annual forb Distribution: native to North America (exotic to Japan) Hokkaido Blue List: A3

Habitat: ruderal, such as roadsides Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) → Locality list (標本整理簿) Stem: section = square Seed dispersal: animal (external) by hooked barbs Chromosome number: 2n = 24, 48 or 72

Bidens frondosa in Hokkaido

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1 2 3

4 5
[1/4b] at the backyard of the Faculty of Engineer, Hokkaido University, on October 7 2014. [2-4] near the former Yuei Dormitory, HU, on August 31 2012. [5] at Denshinhama Coast, Muroran City, on September 17 2013. Discard: at N18/W4, North Ward, Sapporo City, on October 13 2009.