Asteraceae Bercht. & J.Presl(=Compositae) (The Daisy or Sunflower Family) 123 species from the Asteraceae family are recorded from the Maltese Islands.
English name(s) :
Stemless Star-Thistle, Stemless Centaury
Maltese name(s) :
Status for Malta :
Naturalised Alien. Species that was introduced in Malta after year 1492 (Columbus' discovery of the New World)
and spreads and integrates to form established, non-invasive populations.
Species may become become invasive if it widespreads rapidly.
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 :
Not legally protected till the last update of this website (2/Mar/2022)
Red List (1989) :
Not listed in the Red Data Book of the Maltese Islands
Acaulescent. Leaves sparsely grey-tomentose, lyrate-pinnatisect with ovate segments, diminishing in size towards the base of the leaf. Capitula solitary. Involucre c. 15 mm in diameter, ovoid; appendages appendages with long fimbriae and slightly patent apical spine. Florets yellow. Pappus very short.
Naturalized in central Mediterranean islands and S. Spain
Native region outside Europe:
Distributional map in Europe and the Mediterranean region (2018):
Kindly Email if there are papers and publications about local
studies or information about this species to be included in the list above.
Species Images (12 images)
Centaurea acaulis - Image Code: CNTAC-0.
Centaurea acaulis - Image Code: CNTAC-1.
Centaurea acaulis - Image Code: CNTAC-2.
Centaurea acaulis - Image Code: CNTAC-3.
Centaurea acaulis - Image Code: CNTAC-4.
Centaurea acaulis - Image Code: CNTAC-5.
Centaurea acaulis - Image Code: CNTAC-6.
Centaurea acaulis - Image Code: CNTAC-7.
Centaurea acaulis - Image Code: CNTAC-8.
Centaurea acaulis - Image Code: CNTAC-9.
Centaurea acaulis - Image Code: CNTAC-10.
Centaurea acaulis - Image Code: CNTAC-11.
Buy Seeds and Docs
Sales of seeds of wild plants for academic studies, research or personal use. Note that not all species seeds can be exported - depending on Maltese regulations and CITES, and availability depends on season. You are hence kindly requested to first fill and submit a quotation form by which you will get confirmation of the purchase, availability and charges. Currently local orders are not taken.
Buy images found in this large online collection of Maltese flora photographed by the author (Stephen Mifsud). Prices reasonable and rated differently according size and resolution. Buying images for your projects will support this website. When placing an order please take note of the image code specific for every image in the corresponding species webpage (found beneath each individual photo) since this is required when filling the online ordering form. Images are normally sold as a license with the copyright reserved to the author, but sales of copyright of exceptional images can be considered.
Kindly consider to support this website by giving a small donation. This will help to cover some expenses needed to maintain the website and its further development without any adverts. Please login into your PayPal account and use the email: email@example.com as email address to send your donation
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 above). Please do report mistakes, broken links, technical errors, 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.