Ludwigia peploides subsp montevidensis

Family Onagraceae

Water Primrose

Prostrate, often hairy perennial aquatic herb with creeping or floating stems to 4 m long, rooting at the nodes. Longevity indefinite, dies back in winter.

Flowers: Yellow, November - March.

Fruit: Capsule 1 – 3 cm long, with numerous seeds.

Seed: dispersed by water.

Gallery images: seed, seedling, rootstock, resprout


  • Edges of lakes and streams and permanent water.
  • Common in lakes at the Australian Botanic Garden, establishing in ephemeral wet zone and spreading into deeper water.
  • Able to survive in soil drying out.

Ecology of Cumberland Plain Woodland

Ludwigia peploides plant

Ludwigia peploides flower