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MaltaWildPlants.com by Stephen Mifsud |
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External Links: |
Centaurea calcitrapa (Red Star-Thistle) |
Centaurea calcitrapa (ASTERACEAE.) Images for this profile are taken from the Maltese Islands at or after year 2000. |
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Nomenclature and Basic Information |
Species name : |
Centaurea calcitrapa L. Published in Sp. Pl. 917 (1753) | Synonyms :
(basionym or principal syn.) |
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Plant Family : | Asteraceae
Bercht. & J.Presl (=Compositae) (The Daisy or Sunflower Family) 125 species from the Asteraceae family are recorded from the Maltese Islands. | English name(s) : | Red Star-Thistle, Purple Star-Thistle | Maltese name(s) : | Maltese name not known | Status for Malta : | Species that was introduced in Malta after year 1492 and spreads to form established, non-invasive populations. It may become become invasive | Frequency : | Very Common Common Frequent
Scarce Rare
Very Rare Extinct
| Growth form : |
Raunkiaer lifeform [info]: HEMICRYPTOPHYTE (prostate plants with flowers close to the ground)
Germination [info]: Dicotyledon | Legal Protection [link]: | Not Protected by Law (LN200/2011 or LN311/2006) | Red List (1989) : | Not listed in the Red Data Book of the Maltese Islands | Flowering Time : | May-Jul | Colour of Flowers: | Violet |
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Species Description and Distribution |
Habitat in Europe: |
Waste places and disturbed ground. S. & S.C. Europe |
Preferred habitat in Malta: |
Data will be available in the next update of this website. |
Botanical Description: |
Stems 20-100 cm, ascending to erect, divaricately branched from the base. Young leaves grey-lanate, becoming greenish and crispate-pubescent, glandular; lower pinnatifid, with lanceolate, acute, remotely serrate lobes, withered at anthesis; upper pinnatifid, with linear-lanceolate segments, the uppermost lanceolate or somewhat hastate. Capitula sessile, surrounded by upper leaves. Involucre 6-8 mm in diameter, ovoid-cylindrical; bracts coriaceous, ovate, indistinctly veined, with scarious margin; appendages with slender, patent apical spine 10-18 mm, strongly thickened at base, and usually 1-3 basal spines 3-5 mm. Florets pale purple, glandular, equal. Achenes c. 3 mm; pappus absent. |
Chromosome number: |
2n=20 |
Distributional range: |
S. & S.C. Europe naturalized elsewhere in W. & C. Europe |
Distributional map in Europe and the Mediterranean region (2018):
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Occurrences in Europe. (from Flora Europaea pre year 1993): |
Albania, the Balaeric Islands, Bulgaria, Corse, Crete, Czeck Republic and Slovakia, France (incl. Monaco and Channel Islands but excluding Corse), Greece, Switzerland, Spain (incl. Andorra but excl. the Balaerics), Hungary, Italy (excl. Sicily and Sardignia), ex-Jugoslavia, Portugal, Romania, Russia and former USSR, Sardinia, Sicily and/or Malta, Introduced in  Austria and Liechtenstein, Belgium, Britain (excl. Northern Ireland and Channel islands), Germany, the Netherlands |
Occurrences in Europe and the Mediterranean region. (Euro+Med Checklist, 2017) -
Country codes |
AE(G) Ag Al dBe BH Bl(I M N) Bu dCa(C F G L T) ?Ca(H) Cg Co Cr Ct Cy Eg Ga(F) Gr He Hs(G S) Hu It Jo Le Lu Ma dMd(M) Mk Rm Sa Si(M S) Sl Sr Sy Tn Tu(A E) Uk(K) [Au aBe(L) nBr aCs aGa(C) nGe aHb(E) nHo aLa aNo aPo aSk] |
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Images (0 images) | |
No images of Centaurea calcitrapa are available. If you can share your own images of this species to this website, please do so by using the image upload form below. Credits are given to the authors.
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Submit further info on this species |
Use this form to submit more information on this species or report mistakes in this webpage. If information supplied is taken from a book, journal or website, please provide the corresponding reference or website address. Your email address is only for internal communication. Please report only Maltese locations for plants that indicated as rare or very rare (refer to the Nomenclature section). Please do report mistakes, broken links, technical errors, silly typing / grammar errors, misidentifications or taxonomical updates; this will help to improve the website's accuracy. Thanks you! Fill any of the three sections (A/B/C) below and kindly submit the form. * = required fields.
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