knotweed
nounUK /ˈnɒtwiːd/
US /ˈnɑːtwiːd/
Knotweed is a strong plant with small flowers that grows very fast and is hard to get rid of.
The knotweed grew so tall along the fence that it blocked the sun.
RELATED WORDS
OTHER MEANINGS
2. A group of plants in the buckwheat family, often with jointed stems.
Botanists classify knotweed among the Polygonaceae family.
3. An invasive plant that can damage buildings and roads.
The council spent thousands removing knotweed from the riverbank.
4. A plant sometimes used in traditional medicine and cooking.
Some people make tea from young knotweed shoots.