''Ludwigia peruviana'', with the
common name
In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrast ...
s Peruvian primrose-willow
or Peruvian water primrose, is an aquatic, sometimes deciduous species of flowering plant in the
evening primrose family. It can grow to approximately in height. While native to
Peru, it has been introduced in many other countries for its attractive simple yellow flowers, it is now a common weed in swampy areas around the world.
Ecological impact
The Peruvian primrose-willow forms dense colonies along the shore, then creeps into the water where it impedes navigation, damages structures, and competes with native vegetation. This species is classified as a category I invasive species by the United States state of
Florida,
where it clogs numerous lakes and rivers,
and as a noxious weed by the government of Australia.
References
peruviana
Aquatic plants
Flora of Peru
{{Myrtales-stub