bull thistle
Noun
Meaning
European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States
Source: WordNetSynonyms
spear thistle
Cirsium vulgare
boar thistle
Cirsium lanceolatum
milk thistle
Scotch thistle
creeping thistle
Canada thistle
Cirsium arvense
plume thistle
horse thistle
yellow thistle
field thistle
woolly thistle
thorny thistle
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