Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : cirar
Synonym(s) of Sc. name: Cirsium setosum (Willd.) Bieb., Cirsium incanum S.G. Gmelin , Cephalonoplos setosum Bieb. Kitamura, Brea setosa (Bieb.) Kitamura
Classification: Compositae, Dicotyledonous
Common name: creeping thistle
Synonym(s) of Common name:
Name per country: DE : Acker-Distel ; ES : cardo cundidor ; FR : chardon des champs ; IT : cardo campestre ; PT : cardo-das-vinhas ; EN : creeping thistle ; NL : akkerdistel, NL : distel ; DK : agertidse
Biological type: Perennial
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- Cotyledons elliptic or ovate, with rounded tip, more or less stalked.
- Leaves entire, deeply indentate.
- Height: 50-100 cm.
- Stem erect, branched in its upper reproductive part, wingless,almost glabrous.
-Basal leaves in rosette ;leaves elliptical, sessile, with a blade cottony beneath and sparcely hairy above and green. Upper leaves dentate, oblong, pinnatifid, with lanceolate very spiny margins, hairy as the basal leaves.
- Flowers purplish in corymb. Unisexual heads (plant almost never dioecious ). Involucre ovoid and glabrous.
- Fruits : achenes with pappus spread abroad with the wind.
- Risk of confusion with Carduus pycnocephalus L., Carduus tenuiflorus Curtis, Cirsium vulgare (L.) Scop.
- Biological type: Perennial with creeping regenerative root system.
Mistake with: Carduus pycnocephalus , Carduus tenuiflorus , Cirsium vulgare
Ecological profile (click on flags):
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