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Centaurea cyanus L.
CORNFLOWER
Garden cornflower

Life   Plantae   Dicotyledoneae   Asteraceae   Centaurea

Centaurea cyanus, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, whole plant - in flower - general view

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Centaurea cyanus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, inflorescence - whole - unspecified
Centaurea cyanus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, inflorescence - whole - unspecified

Centaurea cyanus, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, stem - showing leaf bases
Centaurea cyanus, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, leaf - basal or on lower stem

Centaurea cyanus, leaf - on upper stem
© Copyright Steve Baskauf, 2002-2011 · 4
Centaurea cyanus, leaf - on upper stem
Centaurea cyanus
© Copyright Bobby Hattaway 2011 · 3
Centaurea cyanus

Centaurea cyanus
© Copyright Malcolm Storey 2011-2117 · 1
Centaurea cyanus
Centaurea cyanus
© Copyright Malcolm Storey 2011-2117 · 1
Centaurea cyanus

Centaurea cyanus, flower
© Kay Yatskievych, 2003 · 1
Centaurea cyanus, flower
Centaurea cyanus, seed
© Copyright Seeds USID 2015 · 1
Centaurea cyanus, seed

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Perdita octomaculata @ CUIC_ENT (2)
Aphididae  Brachycaudus ( @ AMNH_PBI (1)

Prociphilus ( @ NCSU (1)
Apidae  Bombus ashtoni @ AMNH_BEE (1)

Bombus citrinus @ CUIC_ENT (3)

Bombus griseocollis @ I_HHGA (2)

Bombus pensylvanicus @ AMNH_BEE (1)

Bombus ternarius @ AMNH_BEE (1)

Bombus terricola @ AMNH_BEE (1)

Melissodes desponsa @ CUIC_ENT (1)

Triepeolus remigatus @ UCMS_ENT (5)
Coccinellidae  Hippodamia convergens @ I_LB (1)
Colletidae  Colletes kincaidii @ CUIC_ENT (1)
Halictidae  Agapostemon virescens @ CUIC_ENT (4)

Lasioglossum inconditum @ CUIC_ENT (1)

Lasioglossum zonulum @ CUIC_ENT (1)
Megachilidae  Coelioxys alternata @ CUIC_ENT (1)

Megachile centuncularis @ AMNH_BEE (1); CUIC_ENT (1); I_HHGA (1)

Megachile gemula @ CUIC_ENT (1)

Megachile latimanus @ CUIC_ENT (6)

Megachile relativa @ CUIC_ENT (3)

Pseudoanthidium nanum @ I_HHGA (6)
Membracidae  Entylia carinata @ NCSU (2)
Miridae  Orthocephalus bivittatus @ AMNH_PBI (3)

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ERROR -- Need to remove recursive link: http://pick18.pick.uga.edu/mp/20p%3Fsee%3DI_USID186%26res%3D320 USID_Seeds

Following modified from MissouriPlants.com
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Centaurea cyanus L. - Cornflower, Bachelor's Buttons, Blue Bottle

Centaurea cyanus plant

Family - Asteraceae

Stems - To 1m tall, tomentose to arachnoid pubescent, herbaceous.

Centaurea cyanus stem Stem close-up.

Leaves - Alternate. Cauline leaves linear, entire, arachnoid pubescent, to +10cm long, +5mm wide.

Inflorescence - Single flower head terminating branches.

Involucre - Involucre to 1.5cm tall, imbricate, phyllaries with fimbriate margins.

Centaurea cyanus involucre Involucre.

Ray flowers - Absent.

Disc flowers - Corolla typically blue-purple but other colors in cultivated varieties, marginal flowers sterile. inner flowers smaller, fertile. Achenes to 4mm long. Pappus of capillary bristles.

Centaurea cyanus flowers Disk flowers.

Centaurea cyanus flowers Light pink form.

Flowering - May - September.

Habitat - Prairies, waste ground, roadsides, railroads. Also cultivated.

Origin - Native to Europe.

Other info. - This plant is heavily cultivated and escaped to a variety of locations. The disk flowers can be blue-purple, white, or pink. The plant is commonly used in dried flower arrangements.

Photographs taken at Schumaker Park, 6-16-99 and 7-12-00, and by Tom's Creek, NC., 4-20-03.


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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=CECY2 ---> https://plants.usda.gov/java/profile?symbol=CECY2
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://plants.usda.gov/java/profile?symbol=CECY2

Following modified from CalPhotos
   Top | See original


CalPhotos     Photo Database

 

Number of matches : 3
Query: SELECT * FROM img WHERE ready=1 and taxon like "Centaurea cyanus var. alba%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Centaurea cyanus var. alba
Centaurea cyanus var. alba
Cornflower
ID: 5205 1622 2824 0058 [detail]
© 1995 Saint Mary's College of California

Centaurea cyanus var. alba
Centaurea cyanus var. alba
Cornflower
ID: 0000 0000 0606 1251 [detail]
© 2006 George W. Hartwell

Centaurea cyanus var. alba
Centaurea cyanus var. alba
Cornflower
ID: 0000 0000 0606 1252 [detail]
© 2006 George W. Hartwell

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


Copyright © 1995-2016 UC Regents. All rights reserved.

CalPhotos is a project of BSCIT      University of California, Berkeley

Following modified from CalPhotos
   Top | See original


CalPhotos     Photo Database

 

Number of matches : 2
Query: SELECT * FROM img WHERE ready=1 and taxon like "Centaurea cyanus cv.%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Centaurea cyanus cv.
Centaurea cyanus cv.
Cornflower
ID: 0000 0000 0209 1475 [detail]
© 2009 Keir Morse

Centaurea cyanus cv.
Centaurea cyanus cv.
Cornflower
ID: 0000 0000 0209 1476 [detail]
© 2009 Keir Morse

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


Copyright © 1995-2016 UC Regents. All rights reserved.

CalPhotos is a project of BSCIT      University of California, Berkeley

Following modified from CalPhotos
   Top | See original


CalPhotos     Photo Database

 

Number of matches : 35
Query: SELECT * FROM img WHERE ready=1 and taxon like "Centaurea cyanus%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Centaurea cyanus
Centaurea cyanus
Cornflower
ID: 0177 3303 1982 0007 [detail]
© 2001 CDFA

Centaurea cyanus
Centaurea cyanus
Corn Flower
ID: 0000 0000 1002 0042 [detail]
© 2002 Molly Elizabeth Bagley

Centaurea cyanus
Centaurea cyanus
Corn Flower
ID: 0000 0000 1002 0043 [detail]
© 2002 Molly Elizabeth Bagley

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0606 1250 [detail]
© 2006 George W. Hartwell

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0606 1253 [detail]
© 2006 George W. Hartwell

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0716 1363 [detail]
© 2016 John Doyen

Centaurea cyanus
Centaurea cyanus
Garden Cornflower
ID: 0000 0000 0808 1718 [detail]
© 2008 Zoya Akulova

Centaurea cyanus
Centaurea cyanus
Bachelor's Buttons
ID: 0000 0000 1008 0994 [detail]
© 2008 Zoya Akulova

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1208 0546 [detail]
© 2008 Keir Morse

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1208 0547 [detail]
© 2008 Keir Morse

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0509 1662 [detail]
© 2009 Barry Rice

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1009 2862 [detail]
© 2009 Barry Breckling

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1009 2863 [detail]
© 2009 Barry Breckling

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1209 1381 [detail]
© 2009 Neal Kramer

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1209 1387 [detail]
© 2009 Neal Kramer

Centaurea cyanus
Centaurea cyanus
Bachelor's Button
ID: 0000 0000 1209 1390 [detail]
© 2009 Neal Kramer

Centaurea cyanus
Centaurea cyanus
Garden Cornflower
ID: 0000 0000 0610 0109 [detail]
© 2010 Aaron Arthur

Centaurea cyanus
Centaurea cyanus
Garden Cornflower
ID: 0000 0000 0610 0111 [detail]
© 2010 Aaron Arthur

Centaurea cyanus
Centaurea cyanus
Bachelor Buttons
ID: 0000 0000 0710 1710 [detail]
© 2010 Jean Pawek

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0311 0800 [detail]
© 2011 Louis-M. Landry

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0311 0801 [detail]
© 2011 Louis-M. Landry

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0311 0802 [detail]
© 2011 Louis-M. Landry

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0311 0803 [detail]
© 2011 Louis-M. Landry

Centaurea cyanus
Centaurea cyanus
ID: 0000 0000 0311 0804 [detail]
© 2011 Louis-M. Landry

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


Copyright © 1995-2016 UC Regents. All rights reserved.

CalPhotos is a project of BSCIT      University of California, Berkeley

Updated: 2017-07-22 11:25:50 gmt
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