Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : crute
Synonym(s) of Sc. name:
Classification: Compositae, Dicotyledonous
Common name: slender thistle
Synonym(s) of Common name:
Name per country: DE : Schmalköpfige Distel ; ES : ; FR : chardon à capitules grêles ; IT : cardo minore ; PT : cardo-azul ; EN : slender thistle ;
Biological type: Annual, Biennial
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- Cotyledons elongated spoon shaped.
- Entire leaves, deeply indented.
- Height: 30-100 cm.
- Stem entirely leafy, continuously spinous-winged.
- Lower leaves in rosette. Stem's leaves are winged all along the stem. Leaves more or less white and tomentose underneath.
- Flowers purplish rarely white in ovoid elongated capitulum, grouped or isolated. Involucre slightly hairy, composed of scales. Bracts of involucre narrow elongated, terminated by spine. 15-22 flowers in capitulum, detached easily at maturity.
- Fruits : fawn coloured and shiny achenes.
- Plant sometimes used as a decorative plant. Fodder plant if it cut young and dry. Flowers contain nectar.
- - Risk of confusion with Cardus pycnocephalus L., Cirsium arvense (L) Scop., Cirsium vulgare (Savi) Ten.
- Biological type: annual to biennial.
Mistake with: Carduus pycnocephalus , Cirsium arvense , Cirsium vulgare
Ecological profile (click on flags):
Present
Present
Present
