Scientific Name: Ludwigia spp.
English Name: Water Primrose.
French Name: La Jussie.
5 Key Characters:
- Flowers yellow.
Habitat: Slow moving sections of rivers such as by bridges, étangs.
Status: Invasive alien. Property owners and the local river technicians are engaged in a battle to control the plant as it will quickly completely cover a body of water.
Photographed by Loire Valley Nature: