Centaurea jacea
Appearance
(Redirected from Brown knapweed)
Centaurea jacea | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Centaurea |
Species: | C. jacea
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Binomial name | |
Centaurea jacea |
Centaurea jacea, brown knapweed[1] or brownray knapweed, is a species of herbaceous perennial plants in the genus Centaurea native to dry meadows and open woodland throughout Europe. It grows to 10–80 centimetres (4–31 in) tall, and flowers mainly from June to September. It has simple leaves that are alternate in arrangement.[2]

In Britain and America, it is often found as a hybrid[3] of black knapweed, Centaurea nigra.[4] 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
[edit]- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ "Centaurea jacea (brown knapweed): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2024-03-05.
- ^ "Centaurea x_moncktonii in Flora of North America @ efloras.org". www.efloras.org. Retrieved 24 October 2022.
- ^ Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 386–387. ISBN 0-7232-2419-6.
External links
[edit]Media related to Centaurea jacea at Wikimedia Commons