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(First upload on July 2 2013. Last on October 7 2021) [ 日本語 | English ]

Cirsium Mill. (アザミ) Cirsium kamtschaticum Ledeb. ex DC., Kamchatka thistle Common name: chisima-azami (チシマアザミ, 千島薊), or Ezo-azami (エゾアザミ, 蝦夷薊): note that Cirsium yezoense is Sawa-azami (サワアザミ), not Ezo-azami Life form: tall perennial forb Distribution: Sakhalin - Hokkaido (except in Oshima Peninsula?) - Kamchatka - Aleutian Islands Habitat: grasslands - forests Morphology: higly variable

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) Chromosome number: 2n = 68 ssp. pectinellum (A. Gray) Kitam. (エゾノサワアザミ), syn. C. pectinellum A. Gray var. alpinum (Koidz. ex. Kitam.) Kitam. (ミヤマサワアザミ), syn. Cirsium pectinellum A. Gray var. alpinum Koidz. ex Kitam., discarded var. boreale (Kitam.) Tatew. (コバナアザミ) Synonyms: Cirsium boreale Kitam., when separated f. velutinum Kawano (ビロードエゾアザミ)

Cirsium kamtschaticum in Hokkaido

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[1/2] at the western slope of Mount Yotei (羊蹄山), central Hokkaido, on June 28 2014. [3] a rosette at a small stream near Tomamu skislope, central Hokkaido, on June 24 2013. [4] at a footpath around Onnenai Visitor Center in Kushiro Moor, eastern Hokkaido, on July 2 2014. [5] near a transplanted forest of Fraxinus mandshurica in the Experimental Forest of the University of Tokyo, Furano, central Hokkaido, on June 26 2017. [6] along a walkboard to go Todowara in Notsuke Peninsula, eastern Hokkaido, on August 28 2020. Records: in Shibetsu wetland, eastern Hokkaido, on Augsut 28 2020. On the skislope of Mount Moiwa (藻岩山スキー場) on June 22 2021. widespread in Nopporo Forest Park on July 17 2021.

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var. boreale (Cirsium boreale, コバナアザミ, cf.)

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[1-3] in a clear-cut open land along O-sawa Course in Nopporo Forest Park on July 17 2021.