Nasturtium officinale

Legend for Species Pages

Watercress

Nasturtium officinale W. T. Aiton

Synonyms

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

Remarks

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 Bugwood.org 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]

References

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

Map references

sample: Map data for T. ramosissima