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ROUGH SOW THISTLE [1 record]

Record 1 2016-10-12

English

Subject field(s)
  • Weed Science
  • Botany
Universal entry(ies)
CONT

Sonchus asper (L.) Hill. An annual weedy plant 50-150 cm high. Leaves clasping stem at base, slightly lobed or divided; leaf lobes usually having spinetipped teeth; basal lobes rounded. Flowers 12-25 cm across, pale yellow.

OBS

Spiny annual sow-thistle occurs ... in waste places, along fence lines, roadsides, around buildings and occasionally in gardens.

OBS

spiny annual sow-thistle: preferred common name in the Inventory of Canadian Agricultural Weeds (2003).

French

Domaine(s)
  • Mauvaises herbes
  • Botanique
Entrée(s) universelle(s)
CONT

Sonchus asper (L.). [...] Plante annuelle [de] 30 à 80 cm, lisse et peu rameuse. [Ses] feuilles [sont] épaisses, fermes, luisantes [et] à auricules arrondies. [Les] capitules [sont] à involucre généralement glabre [et les] achaines à côtes longitudinales saillantes [sont] non rugueux transversalement.

OBS

Cette espèce est commune dans les endroits cultivés, au bord des chemins et dans les décombres.

OBS

laiteron rude : nom à privilégier selon l'Inventaire des mauvaises herbes du Canada.

Spanish

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