brook thistle

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Noun1.brook thistle - of central and southwestern Europe
plume thistle, plumed thistle - any of numerous biennial to perennial herbs with handsome purple or yellow or occasionally white flower heads
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References in periodicals archive ?
"What about these?" she asked, pointing at some Cirsium, also known as brook thistles. "you think the bees would like them?" Leaning closer to the purple sprays on the top of each flower, she saw three out of the four had a bee in situ, collecting pollen.