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.
Notes:
Derivation of specific name:
Flowering time:
Worldwide distribution: Southern Europe, North Africa, Caucasus and the Middle 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
Literature:

Other sources of information about Silybum marianum:

External websites:

African Plants: A Photo Guide (Senckenberg): Silybum marianum
African Plant Database: Silybum marianum
Biodiversity Explorer (Biodiversity of southern Africa): Silybum marianum
BHL (Biodiversity Heritage Library): Silybum marianum
EOL (Encyclopedia of Life): Silybum marianum
ePIC (electronic Plant Information Center): Silybum marianum
Flora Zambesiaca web site: Silybum marianum
GBIF (Global Biodiversity Information Facility): Silybum marianum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): 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
The Plant List (version 1.1): Silybum marianum
Tropicos: Silybum marianum


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-17

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2017). Flora of Zimbabwe: Cultivated Plants: Species information: Silybum marianum.
http://www.zimbabweflora.co.zw/cult/species.php?species_id=165240, retrieved 23 September 2017

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