Rock Garden Plants
Centaurea spaerocephala ssp. polyacantha (Willd.) Dostál trib. Cardueae 
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FamilyASTERACEAE
Genus speciesCentaurea spaerocephala ssp. polyacantha (Willd.) Dostál trib. Cardueae
SynonymsCentaurea polyacantha Willd.
 Centaurea hystrix Boiss.
Habitatdry, sandy grassland
Descriptionbasal leaves in rosette, petiolate, lyrate, segments dentate, the terminal largest, stem leaves amplexicaule, runcinate-pinnatifid, arachnose, capitula solitary, ca. 5cm
Size5-15cm
Colorblue, purple
Bloomspring
Ca
Typetuft
Cultivationdry, sunny site with a poor, sandy soil
alpine house, sandy soil, sun
Propagationseed in spring, dark, moist, germ. 1 month, 16-21°C
cuttings in late summer
Territory Europe
     Southwestern Europe (Portugal , Spain )
Africa
     Northern Africa (Algeria , Libya , Morocco , Tunisia)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

ASTERACEAE

Centaurea sphaerocephala polyacantha (Willd.) Dostál, Bot. J. Linn. Soc. 71(3): 203 (1976)

Basionym:
Centaurea polyacantha Willd., Sp. Pl., ed. 4 [Willdenow] 3(3): 2312 (1803)

Synonyms:
Calcitrapoides polyacantha (Willd.) Holub
Centaurea sphaerocephala polyacantha (Willd.) Dostál
Seridia polyacantha (Willd.) Sw.

Centaurea hystrix Boiss.

w. & s. Medit.
12 POR SPA 20 ALG LBY MOR TUN

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