Lesser Knapweed Centaurea nigra LinnaeusNon-native  Synonyms: Black Star-thistle.

There are 4 records in the project database.

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A Lesser Knapweed blooming in Howard Co., Maryland (8/30/2014). Photo by Richard Orr. (MBP list)

Lesser Knapweed blooming in Kent Co., Maryland (9/6/2013). Photo by Jim Stasz. (MBP list)

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