field thistle

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Noun1.field thistle - stout North American thistle with purplish-pink flower headsfield thistle - stout North American thistle with purplish-pink flower heads
Cirsium discolor
thistle - any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves
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References in periodicals archive
The Weeds Act specifies five injurious weeds-common ragwort, spear thistle, creeping or field thistle, broad-leaved dock and curled dock and the Ragwort Control Act 2003 (which amends the Weeds Act 1959), advises it is not an offence to have these weeds growing on your land and species such as ragwort have significant conservation benefits.
GREEN SCENE; Mind, body and soil
Other plants listed by Natural England and named in the Weeds Act 1959 are: Common Ragwort, Spear Thistle, Creeping or Field Thistle, Curled Dock and Broad-leaved Dock.
Getting to root of worst weeds; proper ty matters with MARTIN ROBERTS
NFU countryside adviser Dr Andrea Graham said: "There are several specified weeds under the Weeds Act 1959 that are considered injurious, including spear thistle, creeping or field thistle, curled dock and broad-leaved dock.
Farmers must stop spread of toxic weed
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