Nasturtium officinale

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Legend for Species Pages


Nasturtium officinale W. T. Aiton


Nasturtium nasturtium-aquaticum (L.) Karsten

Rorippa nasturtium-aquaticum (L.) Hayek

Sisymbrium nasturtium-aquaticum L.

  • Occurrence in Alberta – Yes
  • Global Invasive Species Database –
  • NatureServe Rank –
  • Haber, Upland –
  • Haber, Wetland –
  • CWF, Status & Invasive Range –
  • Alberta Revegetation Guidelines –
  • The Nature Conservancy –
  • CBCN –
  • AB Weed – No


Very persistent but perhaps slow spreading where introduced in streams. Does well in quiet streams and shallow water.

Edible: available commercially, outside of cultivation take care to avoid polluted water---if you would not drink the water, don't eat the watercress. Chlorinate and wash prior to eating.

[1] Link to Wikipedia, Watercress - "...In some regions, watercress is regarded as a weed, in other regions as an aquatic vegetable or herb. Watercress has been grown in many locations around the world..."

[2] Link to USDA Plants Profile for Nasturtium officinale W.T. Aiton watercress

[3] Link to wiki page for Nasturtium officinale/NJ

watercress (Nasturtium officinale ) flower(s), Leslie J. Mehrhoff, University of Connecticut
watercress (Nasturtium officinale ) plant(s), Mary Ellen (Mel) Harte

Try Google Images: [4]


Szczawinski & Turner, Edible Garden Weeds of Canada, ISBN 0-88902-752-8

Map references

sample: Map data for T. ramosissima