Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Cornflower

Centaurea cyanus

Description:

It is an annual plant growing to 16-35 inches tall, with grey-green branched stems. The leaves are lanceolate, 1–4 cm long. The flowers are most commonly an intense blue colour, produced in flowerheads (capitula) 1.5–3 cm diameter, with a ring of a few large, spreading ray florets surrounding a central cluster of disc florets. The blue pigment is protocyanin, which in roses is red. In the past it often grew as a weed in crop fields, hence its name (fields growing grains such as wheat, barley, rye, or oats are sometimes known as corn fields in the UK). It is now endangered in its native habitat by agricultural intensification, particularly over-use of herbicides, destroying its habitat; in the United Kingdom it has declined from 264 sites to just 3 sites in the last 50 years. In reaction to this, the conservation charity Plantlife named it as one of 101 species it would actively work to bring 'Back from the Brink'. It is also, however, through introduction as an ornamental plant in gardens and a seed contaminant in crop seeds, now naturalised in many other parts of the world, including North America and parts of Australia.

Habitat:

Wild grassland near the dunes

Species ID Suggestions



Sign in to suggest organism ID

12 Comments

sttweets
sttweets 9 years ago

Thanks! Sachin

Sachin Zaveri
Sachin Zaveri 9 years ago

Beautiful Flower,

sttweets
sttweets 10 years ago

Thanks! Check this Skullcap, another great blue flower I spotted recently: http://www.projectnoah.org/spottings/710...

ShawnLaBrier
ShawnLaBrier 10 years ago

Gorgeous picture! I love the color!

SushilBarai
SushilBarai 10 years ago

i love blue

JosephBullock
JosephBullock 10 years ago

Sooo Blue!

Darvesh
Darvesh 10 years ago

simply wow.....!!! :-)

sttweets
sttweets 10 years ago

@OemphaLoempha @Saskia.terlouw Thanks.

SaskiaTerlouw
SaskiaTerlouw 10 years ago

Beautiful

OemphaLoempha
OemphaLoempha 10 years ago

My favorite shades of blue.

sttweets
sttweets 10 years ago

@Isabela: Thank you!

Isabela
Isabela 10 years ago

Beautiful series.

sttweets
Spotted by
sttweets

Bergen (NH), Noord-Holland, Netherlands

Spotted on Aug 22, 2010
Submitted on Mar 21, 2011

Reference

Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team