Cirsium japonicum




Family Asteraceae (alt. Compositae)
Scientific name Cirsium japonicum (Thunberg) Fischer ex de Candolle
Synonyms Carduus japonicus (Fischer ex de Candolle) Franchet; Cirsium belingshanicum Petrak ex Handel-Mazzetti; Cirsium bodinieri (Vaniot) Léveillé; Cirsium cerberus (Vaniot) Léveillé; Cirsium hainanense Masamune; Cirsium japonicum (Thunberg) Fischer ex de Candolle var. australe Kitamura; Cirsium japonicum (Thunberg) Fischer ex de Candolle var. fukienense Kitamura; Cirsium japonicum (Thunberg) Fischer ex de Candolle var. intermedium (Maximovicz) Matsumura; Cirsium japonicum (Thunberg) Fischer ex de Candolle var. takaoense Kitamura; Cirsium lacinulatum Nakai; Cirsium maackii Maximovicz var. intermedium (Maximovicz) Nakai; Cirsium maackii Maximovicz var. kiusianum Nakai; Cirsium senile Nakai; Cirsium smithianum Petrak; Cnicus bodinieri Vaniot; Cnicus cerberus Vaniot; Cnicus japonicus (Fischer ex de Candolle) Maximovicz; Cnicus japonicus (Fischer ex de Candolle) Maximovicz var. intermedius Maximovicz
Common name (Japanese common name) no-azami (ノアザミ, 野薊 [meaning: wild azami (azami = thistle)])
(English common name) Japanese thistle
Distribution (Japan) Honshu, Shikoku, Kyushu
(Other nations) Korea, China
Habitat Field
Chromosomal number n=17
Description Plants 50-100cm tall. Flowers involucres ca. 2cm wide, purple (merely white) corollas 18-23mm long, flowering in May to August. Perennial plants.
Reference Cirsium japonicum Fisch. ex DC.
Compositions of matter useful in the treatment of viral infections derived from plant extracts (US Patent 5989556/1999)
Note Many Japanese authors may believe that similar species found in Korea (and in Tsushima Island, Japan) is thought to be Cirsium japonicum (Thunberg) Fischer ex de Candolle var. ussuriense Kitamura and also that similar species found in Russia and China might be other variation of Cirsium japonicum (Thunberg) Fischer ex de Candolle.



May 2006
at open field
May 2006
at open field
May 2006
at open field



May 2007
at Koishikawa Botanical Garden



May 2006
at open field