HYPP-A Unité de Malherbologie & Agronomie
Weed Science & Agronomy
INRA-Dijon

Bayer Code : cency

Scientific name: Centaurea cyanus L.

Synonym(s) of Sc. name:

Classification: Compositae, Dicotyledonous

Common name: cornflower

Synonym(s) of Common name:

Name per country: DE : Kornblume ; ES : azulejo ; FR : bleuet des champs ; IT : fiordaliso vero ; PT : fidalginhos ; EN : cornflower ; NL : korenbloem, NL : blauwbloeme ; DK : kornblomst

Biological type: Annual

Seed snapshot Seed:

.

Seedling snapshotSeedling snapshot Seedling:

- Cotyledons elliptical to ovate, with rounded tip more or less petiolate.

- Entire leaves, lanceolate, more or less dentate.

Adult plant snapshot Adult plant:

- Height: 30-80 cm. Green-whitish.

- Stem erect, angular and often branched, slender and elongated branches clustered.

- Lower leaves in rosette ; pinnatipartite leaves, petiolate with variable shape. Older leaves with distant lobes, divided with numerous lateral segments. Black spots on lamina.

- Blue, tubulous flowers in capitulum ; involucre with imbricate bracts bordered by short silvered hairs.

- Fruits : yellowish achenes surrounded by reddish pappus.

- Plant's flower is popular astrigent medicine, used in cases of inflammatory infection of the eye.

- Biological type: annual.

Ecological profile (click on flags): BeneLux   Rare     Germany  Rare     Denmark  Rare     Spain  Present     France  Present     Italy  Present     Portugal  Present    

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