Centaurea cyanus

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Centaurea Cyanus

Centaurea cyanus is an annual flower native to Europe that escaped gardens and became naturalized across southern Canada and the United States. Also known as garden cornflower and blue bottle, Centaurea cyanus belongs to the Asteraceae family.

Centaurea Cyanus

The diverse Centaurea genus includes over 350 species[1]. The alternate leaves of this plant are different. The leaves close to the ground are usually larger than those on the upper stem.

Blue Bottle Flowers

Although the lower leaves are somewhat serrated, the upper leaves are typically lanceolate, narrow, and have entire margins. The bluish-purple (often pink to white) flowers bloom on stems 1 to 3 feet tall from late spring through summer.

Bluish Centaurea Cyanus Flower

Each flower (up to 1.5-inches in diameter) is surrounded by an envelope of overlapping bracts.

Bluish Centaurea Cyanus Flowers

Cite This Page

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BioExplorer.net. (2021, November 28). Centaurea cyanus. Bio Explorer. https://www.bioexplorer.net/plants/flowers/centaurea-cyanus/.
BioExplorer.net. "Centaurea cyanus" Bio Explorer, 28 November 2021, https://www.bioexplorer.net/plants/flowers/centaurea-cyanus/.
BioExplorer.net. "Centaurea cyanus" Bio Explorer, November 28 2021. https://www.bioexplorer.net/plants/flowers/centaurea-cyanus/.
Key References
  • [1]“Centaurea cyanus – Plant Finder”. Accessed October 31, 2021. Link.

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