Dipsacus fullonum (weed)

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Dipsacus fullonum (click on image to enlarge it)
Author(s): L. Shyamal
Source: Wikimedia Commons

Dipsacus fullonum (weed) L. - (common teasel)

This weed is native to Europe, western Asia and northern Africa. It has been introduced into the Americas along with cultivated teasel (D. sativus), an obsolete crop plant. Other regions like Australia or southern Africa have been also invaded. In the invaded areas, it has often become an agricultural and environmental weed. For example, it can invade grassland and affect grazing animals due to the spiny leaves and flower heads. It can also form dense monocultures, replacing native species. Further, it is a reservoir of Sunflower chlorotic mottle virus.

The plants can grow up to a height of 2 m. The leaves are elongated. A plant may produce more than 20,000 seeds per year. These fall to the ground, germinate and form dense stands, or they become attached to the fur of animals and disperse longer distances.

Vernacular names
• Deutsch: Wilde Karde
• English: common teasel
• Español: cardencha
• Français: cardère sauvage