Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : cenas
Synonym(s) of Sc. name:
Classification: Compositae, Dicotyledonous
Common name: rough star-thistle
Synonym(s) of Common name:
Name per country: DE : Rauhe Flockenblume ; ES : brasera ; FR : centaurée rude ; IT : fiordaliso ispido ; PT : lóios-ásperos ; EN : rough star-thistle ;
Biological type: Perennial
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- Plant which propagates vegetatively by rhizomes, establishment of seedling is exceptional.
- Height: 20-80 cm.
- Stem rough, angular, erect with slender and prostrate or ascending branches.
- Lower leaves petiolate oblong or pinnatifid. Leaves not decurrent hispid.
- Purplish flowers, in capitulum. external flowers slightly shiny. Involucre ovoid rounded at base, bracts terminated by spines ( 3 to 5 sub-equal, short spines).
- Fruit : white achenes slightly greyish, surrounded with white aigret which measures 1/4 or 1/3 length of fruit.
- Biological type: perennial.
Ecological profile (click on flags):
Rare
Present
Rare
