pakchoi

from WordNet (r) 3.0 (2006)

pakchoi
    n 1: Asiatic plant grown for its cluster of edible white stalks
         with dark green leaves [syn: {bok choy}, {bok choi},
         {pakchoi}, {pak choi}, {Chinese white cabbage}, {Brassica
         rapa chinensis}]

from The Collaborative International Dictionary of English v.0.48

pak-choi \pak-choi\ n.
   An Asiatic plant ({Brassica rapa} chinensis) grown for its
   cluster of edible white stalks with dark green leaves.

   Syn: bok choy, bok choi, pak choi, Chinese white cabbage,
        {Brassica rapa} chinensis.
        [WordNet 1.5]