PERENNIAL CORNFLOWER

Centaurea montana

Daisy & Dandelion Family [Asteraceae]

month8may month8jun month8june month8jul month8july

status
statusZneophyte
flower
flower8blue
inner
inner8purple
inner
inner8indigo
morph
morph8actino
petals
petalsZMany
stem
stem8round

3rd May 2011, Padley, Derbyshire. Photo: © RWD
A frequent garden escape.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
Clump forming, medium height, with large steel-blue flowers.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
Flowers always rayed. Leaves lanceolate, slightly hairy.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
Deeply cut steel-blue outer ray-florets, and splayed-out inner mauve/purple disc florets. A much larger flower than Cornflower.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
The outer ray-florets are infertile and much more deeply cut than Cornflower.


27th May 2005, Chinley, Derbyshire. Photo: © RWD
A deeper-coloured version.


7th June 1005, Southport, Lancs. Photo: © RWD
A deep-purple coloured garden variety.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
The indigo-coloured stamens are long and may curve inwards.


3rd May 2011, Padley, Derbyshire. Photo: © RWD
The leaves are felty hairy.


3rd May 2011, Baslow, Derbyshire. Photo: © RWD
The leaves run down the stem after joining, similar to the leaves of Common Comfrey and some other Comfreys.


14th April 2011, The Navigation, Wakefield. Photo: © RWD
Many garden varieties have much deeper-blue to indigo ray-florets, and stamens almost black.


14th April 2011, The Navigation, Wakefield. Photo: © RWD
Stamens long, curved inwards and indigo to nearly black, with white pollen atop.


14th April 2011, The Navigation, Wakefield. Photo: © RWD
Flower bud. The phyllaries are sea-green with brown edges and fine teeth. Stems felty hairy.


Not to be semantically confused with: Common Centaury (Centaurium erythraea) nor with similar Centauries such as Seaside Centaury (Centaurium littorale) [plants whose scientific names are similar, but which are in a totally different Family altogether, the Gentian Family (Gentianaceae)].

Not to be confused with : Cornflour [a flour produced from Corn made famous by Brown and Poulson].

Many similarities to : Cornflower, but that is an annual whereas Perennial Cornflower is not. Perennial Cornflower is a lot larger, with outer ray-florets that are longer and which not flare-out as wide, are more deeply cut into five long and narrow strips rather than triangular as in Cornflower.

Uniquely identifiable characteristics

Distinguishing Feature :

No relation to : Corn Marigold, Corn Sow-thistle, Corn Chamomile, Corn Spurrey, Corn Mint, Corn-cockle nor Turkey-corn [plants with similar names].


  Centaurea montana  ⇐ Global Aspect ⇒ Asteraceae  

Distribution
 family8Daisy & Dandelion family8Asteraceae

 BSBI maps
genus8Centaurea
Centaurea
(Knapweeds)

PERENNIAL CORNFLOWER

Centaurea montana

Daisy & Dandelion Family [Asteraceae]

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