*Lepidium bonariensis

Family Brassicaceae

Argentine Peppercress

Short-lived perennial herb to 50 cm high, with divided leaves. Longevity less than 2 years.

Flowers: White, March – December.

Fruit: Capsule 2 – 4 mm long, opening when ripe at any time of the year.

Seed: 1.5 mm long, with no specialised dispersal mechanism.

Gallery images: seed, seedling, rootstock, resprout


  • Native of South America.
  • Weed of roadside in mid shade.
  • Occasional, minor weed at the Australian Botanic Garden.

Recent observations

  • Seedling recruitment during June - July 2006.

Asterisk * indicates exotic species naturalised at the Australian Botanic Garden

Ecology of Cumberland Plain Woodland

Lepidium bonariense plant

Lepidium bonariense flower

Lepidium bonariense fruit