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Centaurea
Life   Plantae   Dicotyledoneae   Asteraceae

Centaurea stoebe
© Les Mehrhoff, 2008-2010 · 8
Centaurea stoebe

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Centaurea stoebe
© Les Mehrhoff, 2008-2010 · 8
Centaurea stoebe
Centaurea jacea
© Les Mehrhoff, 2008-2010 · 8
Centaurea jacea

Centaurea jacea
© Les Mehrhoff, 2008-2010 · 8
Centaurea jacea
Centaurea nigrescens
© Les Mehrhoff, 2008-2010 · 6
Centaurea nigrescens

Centaurea nigrescens
© Les Mehrhoff, 2008-2010 · 6
Centaurea nigrescens
Centaurea nigrescens, Tyrol Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea nigrescens, Tyrol Knapweed

Centaurea nigrescens, Tyrol Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea nigrescens, Tyrol Knapweed
Centaurea maculosa, Spotted Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea maculosa, Spotted Knapweed

Centaurea nigrescens, Tyrol Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea nigrescens, Tyrol Knapweed
Centaurea nigrescens, Tyrol Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea nigrescens, Tyrol Knapweed

Centaurea maculosa, Spotted Knapweed
© Copyright Sheryl Pollock 2011 · 5
Centaurea maculosa, Spotted Knapweed
Centaurea nigrescens
© Les Mehrhoff, 2008-2010 · 5
Centaurea nigrescens

Centaurea nigrescens
© Les Mehrhoff, 2008-2010 · 5
Centaurea nigrescens
Centaurea nigrescens
© Les Mehrhoff, 2008-2010 · 5
Centaurea nigrescens
Kinds

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena flavipes @ I_JSA (2)

Camptopoeum frontale @ I_JSA (1)
Aphididae  Aphis ( @ NCSU_ENT (3)

Brachycaudus ( @ CSUC_TCN (1)
Apidae  Bombus californicus @ BMEC_ENT (2)

Bombus griseocollis @ AMNH_BEE (3)

Bombus impatiens @ AMNH_BEE (4)

Bombus insularis @ AMNH_BEE (3)

Bombus pensylvanicus @ AMNH_BEE (1)

Epeolus @ I_JSA (1)

Melissodes denticulata @ CUIC_ENT (1)

Melissodes subillata @ AMNH_BEE (2)
Cicadellidae  Neoaliturus ( @ UCR_ENT (1)
Halictidae  Halictus confusus @ AMNH_BEE (1)

Halictus sexcinctus @ I_JSA (2)
Megachilidae  Megachile judaea @ I_GID (1)

Megachile latimanus @ CUIC_ENT (1)

Megachile mendica @ AMNH_BEE (7)

Megachile montivaga @ AMNH_BEE (1)

Megachile @ I_JSA (1)
Miridae  Oncotylus viridiflavus @ AMNH_PBI (1)
Zygaenidae  Zygaena loti @ I_JSA (1)

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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=CENTA ---> https://plants.usda.gov/java/profile?symbol=CENTA
https://plants.usda.gov/java/profile?symbol=CENTA ---> http://plants.usda.gov/core/profile?symbol=CENTA
http://plants.usda.gov/core/profile?symbol=CENTA ---> https://plants.usda.gov/core/profile?symbol=CENTA
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You are here: Home / Plant Profile

Centaurea L.
knapweed


General Information
Symbol: CENTA
Group: Dicot
Family: Asteraceae
Duration:  
Growth Habit :  
Native Status : AK   I
CAN   I
GL   I
HI   I
L48   I,N
SPM   I
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images



slideshow

Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Centaurea L. – knapweed

Subordinate Taxa

The Plants Database includes the following 37 species of Centaurea . Click below on a thumbnail map or name for species profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Centaurea americana </i>
Nutt.
Centaurea americana
American star-thistle Distribution of <i>
Centaurea aspera </i>
L.
Centaurea aspera
rough star-thistle Distribution of <i>
Centaurea babylonica </i>
(L.) L.
Centaurea babylonica
Syrian knapweed Distribution of <i>
Centaurea bovina </i>
Velen.
Centaurea bovina
pasture knapweed Distribution of <i>
Centaurea calcitrapa </i>
L.
Centaurea calcitrapa
red star-thistle Distribution of <i>
Centaurea calcitrapoides </i>
L.
Centaurea calcitrapoides
smallhead star-thistle Distribution of <i>
Centaurea cineraria </i>
L.
Centaurea cineraria
dusty miller Distribution of <i>
Centaurea cyanus </i>
L.
Centaurea cyanus
garden cornflower Distribution of <i>
Centaurea dealbata </i>
Willd. [excluded]
Centaurea dealbata
whitewash cornflower Distribution of <i>
Centaurea debeauxii </i>
Gren. & Godr. [excluded]
Centaurea debeauxii
meadow knapweed Distribution of <i>
Centaurea depressa </i>
M. Bieb.
Centaurea depressa
Iranian knapweed Distribution of <i>
Centaurea diffusa </i>
Lam.
Centaurea diffusa
diffuse knapweed Distribution of <i>
Centaurea diluta </i>
Aiton
Centaurea diluta
North African knapweed Distribution of <i>
Centaurea eriophora </i>
L.
Centaurea eriophora
wild sandheath Distribution of <i>
Centaurea iberica </i>
Trevir. ex Spreng.
Centaurea iberica
Iberian knapweed Distribution of <i>
Centaurea jacea </i>
L.
Centaurea jacea
brownray knapweed Distribution of <i>
Centaurea macrocephala </i>
Puschk. ex Willd.
Centaurea macrocephala
bighead knapweed Distribution of <i>
Centaurea melitensis </i>
L.
Centaurea melitensis
Maltese star-thistle Distribution of <i>
Centaurea ×moncktonii </i>
C.E. Britton [<i>
jacea × nigra</i>
]
Centaurea ×moncktonii [ jacea × nigra ]
meadow knapweed Distribution of <i>
Centaurea montana </i>
L.
Centaurea montana
perennial cornflower Distribution of <i>
Centaurea nigra </i>
L.
Centaurea nigra
lesser knapweed Distribution of <i>
Centaurea nigrescens </i>
Willd.
Centaurea nigrescens
Tyrol knapweed Distribution of <i>
Centaurea orientalis </i>
L.
Centaurea orientalis
Distribution of <i>
Centaurea ovina </i>
Pall. ex Willd. [excluded]
Centaurea ovina
Distribution of <i>
Centaurea paniculata </i>
L.
Centaurea paniculata
Jersey knapweed Distribution of <i>
Centaurea phrygia </i>
L.
Centaurea phrygia
wig knapweed Distribution of <i>
Centaurea ×pouzinii </i>
DC. [<i>
aspera × calcitrapa</i>
]
Centaurea ×pouzinii [ aspera × calcitrapa ]
knapweed Distribution of <i>
Centaurea ×psammogena </i>
G. Gáyer [<i>
diffusa × stoebe ssp. micranthos</i>
]
Centaurea ×psammogena [ diffusa × stoebe ssp. micranthos ]
knapweed Distribution of <i>
Centaurea rothrockii </i>
Greenm.
Centaurea rothrockii
Rothrock's knapweed Distribution of <i>
Centaurea scabiosa </i>
L.
Centaurea scabiosa
greater knapweed Distribution of <i>
Centaurea solstitialis </i>
L.
Centaurea solstitialis
yellow star-thistle Distribution of <i>
Centaurea stoebe </i>
L.
Centaurea stoebe
spotted knapweed Distribution of <i>
Centaurea sulphurea </i>
Willd.
Centaurea sulphurea
sulphur knapweed Distribution of <i>
Centaurea transalpina </i>
Schleich. ex DC.
Centaurea transalpina
alpine knapweed Distribution of <i>
Centaurea trichocephala </i>
M. Bieb. ex Willd.
Centaurea trichocephala
feather-head knapweed Distribution of <i>
Centaurea uniflora </i>
Turra
Centaurea uniflora
singleflower knapweed Distribution of <i>
Centaurea virgata </i>
Lam.
Centaurea virgata
squarrose knapweed Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend

Legal Status

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
Integrated Taxonomic Information System (CENTA)
Jepson Interchange (University of California - Berkeley) (CENTA)
Related Websites
NV-Invasive Weed Identification for Nevada (CENTA)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Martin Minor Low

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Martin

Sources

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits . Dover Publications. New York.

Description of Values

Value Class Food Cover
High Average 25-50% of diet Regular source of cover
Low 5-10% of diet Infrequently used as cover
Minor 2-5% of diet Sparsely used as cover
Moderate Average 10-25% of diet Occasional source of cover


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Following modified from CalPhotos
   Top | See original


CalPhotos     Photo Database

 

Number of matches : 8
Query: SELECT * FROM img WHERE ready=1 and taxon like "Centaurea sp.%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Centaurea sp.
Centaurea sp.
Cornflower
ID: 5205 1622 2824 0057 [detail]
© 1995 Saint Mary's College of California

Centaurea sp.
Centaurea sp.
Cornflower
ID: 5205 1622 2824 0056 [detail]
© 1995 Saint Mary's College of California

Centaurea sp.
Centaurea sp.
Cornflower
ID: 0000 0000 0105 1544 [detail]
© 2005 Louis-M. Landry

Centaurea sp.
Centaurea sp.
Cornflower
ID: 0000 0000 0105 1545 [detail]
© 2005 Louis-M. Landry

Centaurea sp.
Centaurea sp.
Cornflower
ID: 0000 0000 0105 1547 [detail]
© 2005 Louis-M. Landry

Centaurea sp.
Centaurea sp.
Cornflower
ID: 0000 0000 0105 1548 [detail]
© 2005 Louis-M. Landry

Centaurea sp.
Centaurea sp.
Cornflower
ID: 0000 0000 0105 1549 [detail]
© 2005 Louis-M. Landry

Centaurea sp.
Centaurea sp.
ID: 0000 0000 0310 0093 [detail]
© 2010 Tommaso Sitzia

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 .   


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