Nasturtium officinale
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
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