Silybum marianum (L.) Gaertn.

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Silybum marianum

Photo: Mark Hyde
48, Borrowdale Road, Harare

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Synonyms: Carduus marianus L.
Common names: Milk-thistle (English)
Description: Annual or biennial herb to 1.2 m tall. Stem erect, unwinged, grooved, slightly cottony, simple or branched above. Leaves oblong, glabrous, with strongly spiny margins, pale, shiny, green with white along the veins above. Stem leaves amplexicaul with spiny-ciliate auricles. Capitula 4-5 × 1-2 cm, solitary, erect or nodding. Phyllaries bearing a stout long yellowish spine. Flowers red-purple. Achenes blackish, transversely wrinkled with a yellow ring near the apex.
Derivation of specific name:
Flowering time:
Worldwide distribution: Southern Europe, N Africa, Caucasus and Near East; widely naturalised in other parts of the world.
Growth form(s):
Insects associated with this species:
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Image last updated: Tuesday 30 April 2013

Other sources of information about Silybum marianum:

External websites:

African Plant Database: Silybum marianum
Biodiversity Explorer (Biodiversity of southern Africa): Silybum marianum
EOL (Encyclopedia of Life): Silybum marianum
ePIC (electronic Plant Information Center): Silybum marianum
Flora Zambesiaca web site: Silybum marianum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Silybum marianum
IPNI (International Plant Names Index): Silybum marianum
Ispot Southern Africa : Silybum marianum
JSTOR Plant Science: Silybum marianum
Kew Herbarium catalogue: Silybum marianum
Mansfeld World Database of Agricultural and Horticultural Crops: Silybum marianum
Tropicos: Silybum marianum
West African Plants database: Silybum marianum

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Cultivated Plants: Species information: Silybum marianum., retrieved 4 December 2016

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