Purple loosestrife is a european wildflower that was introduced to which continent in the 1800's?
australia
thyroxine
asia
north america
Purple loosestrife is a European wildflower that was introduced to North America in the early 1800s. It soon spread to take over wetland habitats throughout the U. S. and Canada. Purple loosestrife replaces native wetland plants and threatens native wildlife by eliminating natural foods and cover. It also blocks irrigation systems.