Exotic weeds

Exotic weeds: Weeds that are moved from their place of origin to a new area or country and established there are called exotic weeds. Examples are:

Weeds Origin place
Lantana camara Sri Lanka
Orobanche spp Europe
Cyperus rotundus Eurasia
Johnson grass Asia and S.Europe
Parthenium hysterophorus USA
Xanthium strumarium America
Water hyacinth America
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