Weed Science & Agronomy
INRA-Dijon
|
Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : cirvu
Scientific name: Cirsium vulgare (Savi) Tenore
Synonym(s) of Sc. name: Carduus lanceolatus L., Cirsium lanceolatum (L.)Scop. Cnicus lanceolatus Willdenow
Classification: Compositae, Dicotyledonous
Common name: spear thistle
Synonym(s) of Common name:
Name per country: DE : Gemeine Kratzdistel ; ES : cardo ; FR : chardon lancéolé ; IT : cardo asinino ; PT : cardo-roxo ; EN : spear thistle ; NL : speerdistel ; DK : horsetidsel
Biological type: Biennial
.
- 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 arvense
Ecological profile (click on flags):
Present
Rare
Rare
Present
Present
Present
Present
Present
