Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun boar_thistle
1 sense of boar thistle
Sense 1
bull thistle, boar thistle, spear thistle, Cirsium vulgare, Cirsium lanceolatum -- (European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States)
=> plume thistle, plumed thistle -- (any of numerous biennial to perennial herbs with handsome purple or yellow or occasionally white flower heads)