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Definition of Black knapweed
1. Noun. A weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized.
Lexicographical Neighbors of Black Knapweed
Literary usage of Black knapweed
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Entomologist's Monthly Magazine by Nathaniel Lloyd and Company (1898)
"We took over twenty specimens on July 17th in a corner of a large damp meadow,
bordered by woods ; they appeared to frequent black knapweed (Centaurea ..."
2. Flora Bristoliensis by Edward Horace Swete (1854)
"black knapweed. * Durdham Down, G. St. Vincent's Rocks, G., and frequent throughout
the district. C. Cyanus. (Linn.) Corn Blue bottle. ..."
3. Entomologia Edinensis by James Wilson, James Duncan (1834)
"... the tibiae thickened at the apex. Pretty frequent on plants, particularly the
spear thistle ; likewise on nettles and black knapweed (Centaurea nigra). ..."