Noun scurvy grass has 2 senses
  1. scurvy grass, common 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
    --1 is a kind of cress, cress plant
    --1 is a member of Cochlearia, genus Cochlearia
  2. winter cress, St. Barbara's herb, scurvy grass - any plant of the genus Barbarea: yellow-flowered Eurasian cresses; widely cultivated for winter salad
    --2 is a kind of cress, cress plant
    --2 is a member of Barbarea, genus Barbarea
    --2 has particulars:
     Belle Isle cress, early winter cress, land cress, American cress, American watercress, Barbarea verna, Barbarea praecox
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