Carduus acanthoides L., Sp. Pl.: 821 (1753) (syn: Polyacantha acanthoides (L.) Hill ; Polycantha acanthoides (L.) Hill );
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Temp. Eurasia: Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, China North-Central, China South-Central, China Southeast, Czechia-Slovakia, Denmark, East European Russia, France, Germany, Greece, Hungary, Inner Mongolia, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Libya, Netherlands, North Caucasus, Northwest European Russia, Norway, NW. Balkan Pen., Pakistan, Poland, Qinghai, Romania, South European Russia, Sweden, Switzerland, Tibet, Transcaucasus, Türkey, Türkey-in-Europe, Ukraine, Xinjiang; Introduced into: British Columbia, California, Colorado, Great Britain, Idaho, Illinois, Iowa, Ireland, Kansas, Khabarovsk, Maryland, Michigan, Minnesota, Missouri, Montana, Nebraska, New Brunswick, New Jersey, New York, North Carolina, North Dakota, Nova Scotia, Ontario, Oregon, Pennsylvania, Primorye, Québec, Rhode I., South Dakota, Uruguay, Vermont, Victoria, Virginia, West Virginia, Wisconsin, Wyoming as per POWO;
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Carduus acanthoides from California for validation.: 4 high res. images.
Carduus acanthoides clicked from Fremont California for Validation, clicked in April 2023.
Silybum marianum has very distinct leaves and heads, here is mine from Kashmir
Maybe. But I’m not sure.
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References:
POWO