Wild Flowers Of Strathclyde Park
  
 

Watercress
Nasturtium officinale
of the Cress family
a perennial
30 -70 cm high
blooms May - October
likes shallow, clear freshwater rivers, streams, ponds and ditches
can be seen at the pond.



    
The plant's scientific name derives from the Latin nasi tortium which means 'nose twisting'. This is a reference to its pungent scent. In Yorkshire it has been called 'tang tongue'. It is commercially grown as a rich source of vitamin C. It has, however, a bad reputation as a source of liver fluke larvae which are harmful to sheep.