Canada thistle(redirected from Cirsium arvense)
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Related to Cirsium arvense: creeping thistle
Canada thistle:see thistlethistle,
popular name for many spiny and usually weedy plants, but especially applied to members of the family Asteraceae (aster family) that have spiny leaves and often showy heads of purple, rose, white, or yellow flowers followed by thistledown seeds (a favorite food of the
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