Centaurea nigra


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Noun1.Centaurea nigra - a weedy perennial with tough wiry stems and purple flowersCentaurea nigra - a weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized
knapweed - any of various plants of the genus Centaurea having purple thistlelike flowers
References in periodicals archive ?
binervis, Centaurea nigra, Crocus serotinus, Dactylis glomerata, Deschampsia cespitosa, Juncus effusus, Molinia caerulea, Peucedanum lancifolium, Prunella vulgaris, Ranunculus repens or Rumex acetosa.
Mucho nos tememos que haya sido frecuentemente confundida con Centaurea nigra L.