cress cress /ˈkrɛs/

noun

1. Pungent leaves of any of numerous cruciferous herbs  ( cress )
   pungent leaves of any of numerous cruciferous herbs
    She sprinkled some fresh cress over her sandwich for an added crunch.
   She sprinkled some fresh cress over her sandwich for an added crunch.
   
   
2. Any of various plants of the family Cruciferae with edible leaves that have a pungent taste  ( cress , cress plant )
   any of various plants of the family Cruciferae with edible leaves that have a pungent taste