This purple and gold combo is not a winner for Minnesota’s forests! Common tansy and spotted knapweed are harmful invasive plants that can be found blooming this time of year. Learn how to prevent and manage these invasive plants here: dnr.state.mn.us/invasives/terrestrialplants/herbaceous/commontansy.html and dnr.state.mn.us/invasives/terrestrialplants/herbaceous/spottedknapweed.html | Minnesota Department of Natural Resources
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Centaurea scabiosa, or greater knapweed, is a perennial plant of the genus Centaurea. It is native to Europe and bears purple flower heads. Greater knapweed is found growing in dry grasslands.
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Centaurea nigra is a species of flowering plant in the daisy family known by the common names lesser knapweed, common knapweed and black knapweed. A local vernacular name is hardheads.
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