Common Name: Brown Knapweed or Brownray Knapweed. Scientific Name: Centaurea jacea. Family: Asteraceae. Genus: Centaurea. Height: 10-80cm. Flowering time: June to September. Plant type: Herbaceous perennial. Flower colour: purple, violet

Centaurea jacea (Brown Knapweed) is a species of herbaceous perennial plants in the genus Centaurea. The cauline leaves sessile, with linear or lanceolate blades, entire or dentate. It is native to Europe.