Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : censo
Synonym(s) of Sc. name:
Classification: Compositae, Dicotyledonous
Common name: yellow star-thistle
Synonym(s) of Common name:
Name per country: DE : Sonnwend-Flockenblume ; ES : abremanos ; FR : centaurée du solstice ; IT : fiordaliso giallo ; PT : orelhas-de-rato1531330 ; EN : yellow star-thistle ;
Biological type: Annual
.
- Cotyledons elliptical to ovate rounded at tip, more or less petiolate.
- Entire leaves , deeply indented.
- Height: 20-40 cm. Tomentose , whitish.
- Stem erect narrow winged, very branched , with flat branches.
- Leaves tomentose-white or whitish on both faces terminated in point almost spiny. Lower leaves deeply divided , leaves, sessile , almost linear , entire.
- Yellow flowers not glandulous in capitulum , <12 mm wide. Spiky involucre.
- Greyish ripe fruits , without hairs, central achenes , shiny 2-3 mm long without pappus. Marginal achenes with white pappus longer than fruit.
- Plant used like combustible in Russia; stomachic roots. Is this a mistranslation? See accompanying notes.
- - Risk of confusion with: Centaurea melitensis L.
- Biological type: annual.
Mistake with: Centaurea melitensis
Ecological profile (click on flags):
Rare
Present
