noun Date: 1863 a biennial Eurasian thistle ( Cirsium vulgare ) with purplish flower heads and prickly leaves that is naturalized as a weed in the United States
BULL THISTLE
Meaning of BULL THISTLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012