Pictorial guide to the flora of the British Isles

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Centaurea jacea L.

brown knapweed (Asteraceae / Compositae)

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Centaurea jacea is a continental European species that is only rarely found in Great Britain; its hybrid, Centaurea × gerstlaueri is more frequent here.

Vienna, Austria; 2005-07-21

 brown knapweed / Centaurea jacea: _Centaurea jacea_ is a continental European species that is only rarely found in Great Britain; its hybrid, _Centaurea_ × _gerstlaueri_ is more frequent here.

The phyllaries of Centaurea jacea are pale brown, with irregular fringing.

Wienerwald, Austria; 2004-09-19

 brown knapweed / Centaurea jacea: The phyllaries of _Centaurea jacea_ are pale brown, with irregular fringing.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne