Centaurea cyanus

Family:ASTERACEAE
Species:Centaurea cyanus Linnaeus
Common Name:Garden Cornflower; Bachelor's Buttons
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:Bachelor's Buttons is an introduced herbaceous annual in the Sunflower family (Asteraceae). It is native to Europe. In Alabama in can be found in the northern two-thirds of the state. Bachelor's Buttons grows on roadsides, in fields and pastures, and along railroads. It is an annual with a taproot. Stems are 1-3 feet in height, erect, branched above the middle, and loosely tomentose, giving them a gray or whitish appearance. Leaves are alternate, petiolate (lower) or sessile (upper), linear lanceolate in outline, and lobed or unlobed. The leaves are loosely gray-tomentose. Flowers are produced in long peduncled heads. The heads are arranged in cymes. The outer phyllaries have thin and papery toothed margins. The heads contain 25-35 blue, white, pink, or purple ray flowers. The outer flowers are larger than the inner and sterile. The corolla is funnel-form with 6 spreading lobes. Four of the lobes are larger than the other two. The fruit is an achene with pappus composed of unequal stiff bristles. Bachelor's Buttons is commonly cultivated as an ornamental, especially for cut flowers. It is often included in wildflower seed mixes and will re-seed. Bachelor's Buttons grows well in average soils and full sun. Seed should be planted outdoors in the autumn.—A. Diamond
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Centaurea
Species Centaurea cyanus Linnaeus - Garden Cornflower; Bachelor's Buttons

Citation

Citation CENTAUREA CYANUS Linnaeus, Sp. Pl. 911. 1753.
Basionym: **
Type: Without data (lectotype: LINN 1030.16). Lectotypified by Wagenitz, in Rechinger, Fl. Iran. 139b: 418. 1980.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Centaurea cyanocephala Centaurea cyanocephala Velenovsky, Abh. Königl. Böhm. Ges. Wiss., ser. 7. 1(8): 26. 1886. BULGARIA
Centaurea cyanus subsp. coa Centaurea cyanus Linnaeus, subsp. coa Rechinger f., Phyton 1: 216. 1949.  
Centaurea cyanus var. denudata Centaurea cyanus Linnaeus, var. denudata Suksdorf, Werdenda 1: 43. 1927.  
Centaurea pulchra Centaurea pulchra de Candolle, Prodr. 6: 578. 1837.  
Cyanus arvensis Cyanus arvensis Moench, Methodus 561. 1794, nom. illegit.Cyanus segetus Hill 1762; Centaurea cyanus Linnaeus 1753. 
Cyanus cyanus Cyanus cyanus (Linnaeus) Hill, Hort. Kew. 64. 1768, nom. inadmiss.Centaurea cyanus Linnaeus 1753. 
Cyanus segetus Cyanus segetus Hill, Veg. Syst. 4: 29. 1762.Centaurea cyanus Linnaeus 1753. 
Cyanus vulgaris Cyanus vulgaris Delarbre, Fl. Aubergne, ed. 2. 203. 1800, nom. illegit.Cyanus segetus Hill 1762; Centaurea cyanus Linnaeus 1753. 
Leucacantha cyanus Leucacantha cyanus (Linnaeus) Nieuwland & Lunell, Amer. Midl. Naturalist 5: 71. 1917.Centaurea cyanus Linnaeus 1753. 
Setachna cyanus Setachna cyanus (Linnaeus) Dulac, Fl. Hautes-Pyrenees 520. 1867.Centaurea cyanus Linnaeus 1753. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Bibb, Bullock, Calhoun, Chambers, Cleburne, Colbert, Elmore, Etowah, Jackson, Lawrence, Lee, Limestone, Lowndes, Marengo, Morgan, Pike, Russell, St. Clair, Talladega, Tallapoosa, Tuscaloosa, Walker

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
UNA00061262 Lawrence 19 Apr 2003 D. D. Spaulding
11742
UNA
Centaurea cyanus L.
AUA000002066 Lee 4 MAY 1954 THOMPSON, PAT
AUA
CENTAUREA CYANUS L.
JSU104356 Lowndes 09 Jun 1984 R. D. Whetstone
14101
JSU
Centaurea cyanus Linnaeus
JSU104354 Jackson 29 Jun 1996 J. M. Ballard
6030
JSU
Centaurea cyanus Linnaeus
JSU104360 Talladega 29 Apr 1968 Charles Payton
s.n.
JSU
Centaurea cyanus Linnaeus
JSU104348 Cleburne 04 May 1994 S. E. Hruska
130
JSU
Centaurea cyanus Linnaeus
JSU104345 Calhoun 26 Apr 1954 Lewis Loath
s.n.
JSU
Centaurea cyanus Linnaeus
JSU104359 Talladega 21 Apr 1972 R. D. Whetstone
80
JSU
Centaurea cyanus Linnaeus
AUA000002062 Chambers 22 APR 1967 GOLDEN, MICHAEL S.
44
AUA
CENTAUREA CYANUS L.
JSU104355 Lowndes 09 Jun 1984 R. D. Whetstone
14101
JSU
Centaurea cyanus Linnaeus
AUA000002057 Bibb 1 MAY 1955 STACY, JACK
AUA
CENTAUREA CYANUS L.
JSU104344 Calhoun 11 Apr 1971 Gary Wayner
s.n.
JSU
Centaurea cyanus Linnaeus
JSU104343 Calhoun 06 Apr 1986 C. L. Lawler
115
JSU
Centaurea cyanus Linnaeus
UWAL0016465 Pike 06 Jun 2014 Diamond, Alvin R.
25150
UWAL
Centaurea cyanus Linnaeus
JSU104352 Etowah 05 Jun 1994 L. M. Hodge
2259
JSU
Centaurea cyanus Linnaeus
UWAL0019877 Morgan 22 Jun 1991 Kral, R.
79016
UWAL
Centaurea cyanus L.
UWAL0032386 Limestone 09 Apr 2016 England, J. Kevin
6180
UWAL
Cyanus segetum Hill
TROY000017364 Autauga 28 Apr 2007 Brian R. Keener
3572
TROY
Centaurea cyanus Linnaeus
AUA000002067 Lee 14 APR 1949 SNOW, SAMUEL P.
AUA
CENTAUREA CYANUS L.
UNA00016322 Tuscaloosa 10 Apr 1955 Joe A. Farmer
s.n.
UNA
Centaurea cyanus L.
AUA000002060 Chambers 2 MAY 1971 DONOVAN, LOIS A.
265
AUA
CENTAUREA CYANUS L.
TROY000001634 Pike 05 Nov 1998 S. Johnson
2
TROY
Centaurea cyanus Linnaeus
AUA000002071 Lee 1 MAY 1969 HALL, WILLIAM G.
142
AUA
CENTAUREA CYANUS L.
AUA000002074 Pike 14 APR 1973 BOTTS, DANIEL A.
061
AUA
CENTAUREA CYANUS L.
AMAL00008021 Walker 03 May 2003 D.D. Spaulding
11804
AMAL
Centaurea cyanus L.
AUA000002075 Russell 29 APR 1966 MILLER, NEWELL
AUA
CENTAUREA CYANUS L.
TROY000001636 Pike 17 May 1995 James Erich Ball
3
TROY
Centaurea cyanus Linnaeus
AUA000002072 Morgan 21 APR 1972 WILLIAMS, SUSAN
057
AUA
CENTAUREA CYANUS L.
SAMF0005256 Tuscaloosa 20 Apr 1963 Williams, Norris
66
SAMF
Centaurea cyanus Linnaeus
UWAL0000500 Autauga 28 Apr 2007 Keener, Brian R.
3572
UWAL
Centaurea cyanus L.
AUA000002061 Chambers 13 APR 1971 GWALTNEY, JOHN R.
082
AUA
CENTAUREA CYANUS L.
TROY000001635 Pike 01 May 1993 Shaun Powell
4
TROY
Centaurea cyanus Linnaeus
AUA000002073 Pike 15 MAY 1994 DIAMOND, JR., ALVIN R.
9161
AUA
CENTAUREA CYANUS L.
AMAL00007277 Lawrence 19 Apr 2003 D.D. Spaulding
11742
AMAL
Centaurea cyanus L.
AUA000002063 Elmore 9 APR 1973 PONDER, WILLIAM
099
AUA
CENTAUREA CYANUS L.
UWAL0019217 St. Clair 27 Jun 1989 Kral, R.
76677
UWAL
Centaurea cyanus L.
AUA000002068 Lee 10 APR 1964 CREEL, JOHN
AUA
CENTAUREA CYANUS L.
JSU104357 St. Clair 22 Jun 1969 Jerry Ellard
1677
JSU
Centaurea cyanus Linnaeus
UNA00068666 Autauga 28 Apr 2007 Brian R. Keener
3572
UNA
Centaurea cyanus L.
AUA000002078 Tallapoosa 1 MAY 1971 WIDDER, E. J.
097
AUA
CENTAUREA CYANUS L.
AUA000002079 Tallapoosa 17 MAY 1969 ATKINSON, JR., A. W.
704
AUA
CENTAUREA CYANUS L.
AMAL00014123 Autauga 28 Apr 2007 Brian R. Keener
3572
AMAL
Centaurea cyanus L.
AUA000002064 Lee 12 APR 1969 MOORE, HAROLD D.
090-69
AUA
CENTAUREA CYANUS L.
AUA000025980 Autauga 3 OCT 2008 KEENER, BRIAN R.
3572
AUA
CENTAUREA CYANUS L.
JSU104350 Cleburne 06 May 1967 N. Sanford
s.n.
JSU
Centaurea cyanus Linnaeus
AUA000002077 Talladega 2 MAY 1970 WILLIAMS, ANN
108
AUA
CENTAUREA CYANUS L.
TROY000014954 Walker 03 May 2003 Daniel D. Spaulding
11804
TROY
Centaurea cyanus Linnaeus
JSU104347 Chambers 13 May 1973 Andrea E. Langley
114
JSU
Centaurea cyanus Linnaeus
UWAL0000501 Lawrence 19 Apr 2003 Spaulding, D.D.
11742
UWAL
Centaurea cyanus L.
AUA000002059 Chambers 6 JUL 1972 DAWN, MARTHA
030
AUA
CENTAUREA CYANUS L.
AMAL00013026 Limestone 25 Apr 1989 Ruth Ann Edge
010
AMAL
Centaurea cyanus L.
AUA000002069 Lee 27 MAY 1963 PORTERFIELD, MARTHA
AUA
CENTAUREA CYANUS L.
JSU104346 Calhoun 18 Jul 1969 Norma J. Beaty
s.n.
JSU
Centaurea cyanus Linnaeus
AUA000002076 Russell 9 MAY 1970 MOORE, HAROLD D.
016
AUA
CENTAUREA CYANUS L.
TROY000014955 Lawrence 19 Apr 2003 Daniel D. Spaulding
11742
TROY
Centaurea cyanus Linnaeus
JSU104342 Calhoun 06 Apr 1986 C. L. Lawler
115
JSU
Centaurea cyanus Linnaeus
UWAL0000502 Marengo 11 May 1993 Harris, J.W.
s.n.
UWAL
Centaurea cyanus L.
JSU104353 Jackson 04 Jun 1999 K. R. Brodeur
1946
JSU
Centaurea cyanus Linnaeus
UNA00016324 Tuscaloosa 20 Apr 1963 Norris H. Williams
66
UNA
Centaurea cyanus L.
AUA000002065 Lee 28 MAY 1970 MURCHISON, GROVER B.
220
AUA
CENTAUREA CYANUS L.
UNA00061089 Walker 3 May 2003 D. D. Spaulding
11804
UNA
Centaurea cyanus L.
JSU104341 Bibb 13 May 1983 R. D. Whetstone
13439
JSU
Centaurea cyanus Linnaeus
JSU104358 St. Clair 25 May 1973 Jerry Clonts
s.n.
JSU
Centaurea cyanus Linnaeus
JSU143453 Calhoun 18 May 1972 Pam Davis
s.n.
JSU
Centaurea cyanus Linnaeus
JSU104349 Cleburne 04 May 1994 S. E. Hruska
130
JSU
Centaurea cyanus Linnaeus
JSU104351 Colbert 23 Apr 1969 McWilliams
s.n.
JSU
Centaurea cyanus Linnaeus
AUA000002058 Bullock 15 MAY 1983 MCLENDON, DEAN B.
140
AUA
CENTAUREA CYANUS L.
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