Atriplex hortensis

from WordNet (r) 3.0 (2006)

Atriplex hortensis
    n 1: Asiatic plant resembling spinach often used as a potherb;
         naturalized in Europe and North America [syn: {garden
         orache}, {mountain spinach}, {Atriplex hortensis}]

from The Collaborative International Dictionary of English v.0.48

Orach \Or"ach\, Orache \Or"ache\, n. [F. arroche, corrupted fr.
   L. atriplex, Gr. ?. Cf. {Arrach}.] (Bot.)
   A genus ({Atriplex}) of herbs or low shrubs of the Goosefoot
   family, most of them with a mealy surface.
   [1913 Webster]

   {Garden orache}, a plant ({Atriplex hortensis}), often used
      as a pot herb; -- also called {mountain spinach}.
      [1913 Webster]