Centaurea jacea

Centaurea jacea
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Centaurea
Species:	C. jacea
Binomial name
	Centaurea jacea; L.

Centaurea jacea, brown knapweed^[1] or brownray knapweed, is a species of herbaceous perennial plants in the genus Centaurea native to and open woodland throughout Europe. It grows to 10–80 centimetres (4–31 in) tall, and flowers mainly from June to September.

Centaurea jacea

In Britain, it is often found as a hybrid of black knapweed, Centaurea nigra.^[2] Unlike the black knapweed, the flower heads always look as if they are rayed, forming a more open star rather than a brush-like tuft.

References[]

^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
^ Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 386–387. ISBN 0-7232-2419-6.

External links[]

Media related to Centaurea jacea at Wikimedia Commons

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[BSBI07-1] BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.

[The_Wild_Flower_Key-2] Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 386–387. ISBN 0-7232-2419-6.

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