#watercress  any of several water-loving cresses
  supertype:  #cress_plant__cress  any of various plants of the family Cruciferae having edible pungent-tasting leaves
  member of:  #family_Cruciferae
  subtype:  #American_watercress__mountain_watercress__Cardamine_rotundifolia  mat-forming perennial found in cold springs of the eastern United States
  subtype:  #common_watercress__Rorippa_nasturtium-aquaticum__Nasturtium_officinale  perennial Eurasian cress growing chiefly in springs or running water having fleshy pungent leaves used in salads or as a potherb or garnish; introduced in North America and elsewhere
  subtype:  #marsh_cress__marshcres__yellow_watercress__Rorippa_islandica  annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities
  subtype:  #great_yellowcress__greatyellowcres__Rorippa_amphibia__Nasturtium_amphibium  perennial herb found on streams and riversides throughout Europe except extreme north and Mediterranean; sometimes placed in genus Nasturtium

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