1. Family: Asteraceae Bercht. & J.Presl
    1. Genus: Centaurea L.
      1. Centaurea melitensis L.

        This species is accepted, and its native range is Macaronesia, Medit.

    [FZ]

    Compositae, G. V. Pope. Flora Zambesiaca 6:1. 1992

    Habit
    An erect annual herb up to c. 1 m. tall.
    Stem
    Stems slender, stiffly branched, angular, narrowly winged, scabridulous.
    Leaves
    Cauline leaves sessile, up to c. 4 x 0.5 cm., oblong-lanceolate, entire, sometimes sinuate or dentate, decurrenton the stem as narrow wings, hispid-pubescent or young growth ± sericeous-araneose at first. Basal leaves up to c. 10 cm. long, narrowly obovate to lyrate-pinnatilobed; lobes few, remote, narrow, entire or dentate.
    Capitulum
    Capitula solitary and terminal on short lateral branches; involucres c. 12 mm. long, urceolate, araneose.
    Phyllaries
    Phyllaries imbricate, increasing in length towards the inside, coriaceous, glabrous, appendaged; appendages of outer phyllaries brownish or purple, each with a deflexed apical spine 5–7 mm. long and 2–3 pairs of pinnately arranged short lateral spines; appendages of innermost phyllaries with the terminal spine reduced and the lateral spines absent, often expanded and chartaceous.
    Receptacle
    Receptacle densely setose; the setae c. 7 mm. long.
    Florets
    Florets yellow, glandular otherwise glabrous; marginal florets neuter; disk-florets hermaphrodite, 8–12 mm. long, narrowly infundibuliform, limb 4.5–5.5 mm. long, lobes c. 1.5 mm. long.
    Fruits
    Achenes pale brownish-purple, c. 3 mm. long, oblong, somewhat laterally compressed, sparsely finely puberulent, attachment-scar lateral and oblique-concave; pappus many-seriate of persistent unequal paleaceous setae up to c. 3 mm. long.
    [FTEA]

    Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

    Habit
    Erect herb to 1 m high; stems branched, narrowly winged.
    Leaves
    Leaves sessile, elliptic, 4–15 cm long, 0.3–1 cm wide, margins entire or sometimes pinnatilobed in lowermost leaves, hispid-pubescent.
    Capitulum
    Capitula solitary and terminal on short lateral branches; involucre 10–17 mm long; phyllaries ovate, 12 mm long, with spiny terminal appendages; receptacle with setae to 7 mm long.
    Florets
    Corolla yellow, the marginal florets neuter; inner florets 8–12 mm long.
    Fruits
    Achenes pale brown, 2.5–3 mm long, glabrous or puberulous; pappus of unequal setae, the inner to 3 mm long, the outer narrow and scale-like, 0.5–1.5 mm long.
    Habitat
    Wheat- or maize-fields, pastures, roadsides; 1800–2200 m
    Distribution
    K3 K4 a native of the W Mediterranean, but now a widespread weed

    Images

    Distribution

    Native to:

    Algeria, Azores, Baleares, Canary Is., Cape Verde, Corse, Egypt, France, Greece, Italy, Kriti, Libya, Madeira, Morocco, Portugal, Sardegna, Selvagens, Sicilia, Spain, Tunisia, Yugoslavia

    Introduced into:

    Alabama, Arizona, Belgium, Bolivia, British Columbia, California, Cape Provinces, East Aegean Is., Ecuador, Ethiopia, Free State, Georgia, Germany, Great Britain, Hawaii, Idaho, Illinois, India, Ireland, Juan Fernández Is., KwaZulu-Natal, Masachusettes, Mexico Northwest, Mississippi, Missouri, Nevada, New Caledonia, New Jersey, New Mexico, New South Wales, Norfolk Is., Northern Provinces, Norway, Oregon, Pennsylvania, Peru, Poland, Queensland, South Australia, Switzerland, Tasmania, Texas, Uruguay, Utah, Victoria, Washington, Western Australia, Wisconsin, Yemen, Zimbabwe

    Centaurea melitensis L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mar 1, 1837 Tenore, M. [s.n.], Italy K000772991

    First published in Sp. Pl.: 917 (1753)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of Tropical East Africa
    • Agnew, A.D.Q. & Agnew, S., Upland Kenya Wild Flowers, ed. 2: 228 (1994).
    • G.V. Pope in Flora Zambesiaca 6: 55 (1992).
    • C. Jeffrey in Kew Bulletin 22: 136 (1968).
    • Philipson in Journal of Botany 77: 231 (1939).
    • L., Sp. Pl.: 917 (1753).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0