#cress_plant__cress  any of various plants of the family Cruciferae having edible pungent-tasting leaves
  supertype:  #crucifer__cruciferous_plant__cruciferousplant  any of various plants of the family Cruciferae
  member of:  #family_Cruciferae
  subtype:  #watercress  any of several water-loving cresses
     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
  subtype:  #Arabidopsis_thaliana__mouse-ear_cress__mouseearcres  a small invasive self-pollinating weed with small white flowers; much studied by plant geneticists; the first higher plant whose complete genome sequence was described
  subtype:  #Arabidopsis_lyrata  a small non-invasive cross-pollinating plant with white flowers; closely related to Arabidopsis thaliana
  subtype:  #rock_cress__rockcress__rockcres  any of several rock-loving cresses of the genus Arabis
     subtype:  #Arabis_Canadensis__sicklepod  North American rock cress having very long curved pods
     subtype:  #Arabis_turrita__tower_cress__tower_mustard__towermustard  European cress having stiff erect stems; sometimes placed in genus Turritis
  subtype:  #tower_mustard__towermustard__tower_cress__Turritis_glabra__Arabis_glabra  or genus Arabis: erect cress widely distributed throughout Europe
  subtype:  #St._Barbara's_herb__winter_cress__scurvy_grass  any plant of the genus Barbarea: yellow-flowered Eurasian cresses; widely cultivated for winter salad
     subtype:  #Belle_Isle_cress__early_winter_cress__land_cress__American_cress__American_watercress__Barbarea_verna__Barbarea_praecox  of southwestern Europe; cultivated in Florida
  subtype:  #bittercress__bittercres__bittercres  any of various herbs of the genus Cardamine, having usually pinnate leaves and racemes of white, pink or purple flowers; cosmopolitan except Antarctic
     subtype:  #lady's_smock__cuckooflower__cuckoo_flower__meadow_cress__Cardamine_pratensis  a bitter cress of Europe and America
     subtype:  #coral-root_bittercress__coralroot__coralwort__cardaminebulbifera__Dentaria_bulbifera  European bittercress having a knotted white rootstock
     subtype:  #crinkleroot__pepperroot__toothwort__Cardamine_diphylla__Dentaria_diphylla  North American herb with pungent scaly or toothed roots
     subtype:  #spring_cress__Cardamine_bulbosa  small white-flowered cress common in wet places in eastern North America
     subtype:  #purple_cress__Cardamine_douglasii  small perennial herb of cooler regions of North America with racemose purple flowers
  subtype:  #common_scurvy_grass__scurvy_grass__Cochlearia_officinalis  a widely distributed arctic cress reputed to have value in treatment or prevention of scurvy; a concentrated source of vitamin C
  subtype:  #common_garden_cress__garden_pepper_cress__pepper_grass__pepperwort__Lepidium_sativum  annual herb used as salad green and garnish

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