cress /ˈkrɛs/
 水芹,水韭


 Cress n.; pl. Cresses   Bot. A plant of various species, chiefly cruciferous. The leaves have a moderately pungent taste, and are used as a salad and antiscorbutic.
 Note: ☞ The garden cress, called also peppergrass, is the Lepidium sativum; the water cress is the Nasturtium officinale. Various other plants are sometimes called cresses.
    To strip the brook with mantling cresses spread.   --Goldsmith.
 Bitter cress. See under Bitter.
 Not worth a cress, or not worth a kers.” a common old proverb, now turned into the meaningless “not worth a curse.”

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 cress
      n 1: any of various plants of the family Cruciferae having edible
           pungent-tasting leaves [syn: cress plant]
      2: pungent leaves of any of numerous cruciferous herbs