pepperwort

from WordNet (r) 3.0 (2006)

pepperwort
    n 1: any of several water ferns of the genus Marsilea having
         four leaflets [syn: {clover fern}, {pepperwort}]
    2: annual herb used as salad green and garnish [syn: {common
       garden cress}, {garden pepper cress}, {pepper grass},
       {pepperwort}, {Lepidium sativum}]

from The Collaborative International Dictionary of English v.0.48

Peppergrass \Pep"per*grass`\, n. (Bot.)
   (a) Any herb of the cruciferous genus {Lepidium}, especially
       the garden peppergrass, or garden cress, {Lepidium
       sativum}; -- called also {pepperwort}. All the species
       have a pungent flavor.
   (b) The common pillwort of Europe ({Pilularia globulifera}).
       See {Pillwort}.
       [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Pepperwort \Pep"per*wort`\, n. (Bot.)
   See {Peppergrass}.
   [1913 Webster]

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