Wild Flowers Of Strathclyde Park
  
 

Marsh Yellowcress
Rorippa islandica
of the Cabbage family
a perennial
25 - 60 cm high
blooms June - September
likes pondsides and riverbanks
by the lakeside throughout

   
Marsh Yellowcress' scientific name has lead it to be known also as Iceland watercress. It can be a bit of a pest plant in damp spots in gardens.