HyperDic: spear_thistle

English > 1 sense of the expression *spear thistle*:
NOUN	plant	spear thistle, bull thistle, boar thistle, Cirsium vulgare, Cirsium lanceolatum	European thistle with rather large heads and prickly leaves

English > *spear thistle*: 1 sense > noun 1, plant
Meaning	European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States.
Synonyms	bull thistle, boar thistle, Cirsium vulgare, Cirsium lanceolatum
Broader	plume thistle, plumed thistle	Any of numerous biennial to perennial herbs with handsome purple or yellow or occasionally white flower heads