Centaurea n. (Bot.) A large genus of composite plants, related to the thistles and including the cornflower or bluebottle (Centaurea Cyanus) and the star thistle (Centaurea Calcitrapa).
... explain that it was not the peculiarity of Mr Loggerheads' name that produced the odd effect. Loggerheads is a local term for a harmless plant called the knapweed (centaurea nigra), and it is also the appellation of a place and of quite excellent people, and no one regards it as even the ... — The Matador of the Five Towns and Other Stories • Arnold Bennett
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