(Upload on November 20 2013) [ 日本語 | English ]

Cirsium yezoense (Maxim.) Makino

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

Cirsium Mill. (アザミ)
Sawa-azami (サワアザミ, 沢薊), Yezo thistle * (* tentative translation)
Note that Cirsium kamtschaticum is sometiems called Ezo-azami of which most common name is Chishima-azami
Life form: tall perennial forb, occasionally becoming 3 m in height
Distribution: endemic to Japan (north to Kinki District, and south to southern Hokkaido), more in Japan Sea side
Habitat: mesic grasslands and forest floors

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト)

Flowering: late autumn
Stem and leaf: not so many spines
Edible: leaves and stems cooked as tempra fritter, simmered dish, or pickle

Cnicus yezoensis Maxim. → moved to Cirsium
Cirsium yesoense (Maxim.) Nakai, reported in 1912 (Makino reported in 1905)


Cirsium yezoense in Hokkaido

[1-3] in the crater basin of Mount Usu on July 18 2013 ⇒ flora on Mount Usu