wild mandrake

from WordNet (r) 3.0 (2006)

wild mandrake
    n 1: North American herb with poisonous root stock and edible
         though insipid fruit [syn: {mayapple}, {May apple}, {wild
         mandrake}, {Podophyllum peltatum}]

from The Collaborative International Dictionary of English v.0.48

mayapple \mayapple\, may apple \may apple\n.
   1. North American herb ({Podophyllum peltatum}) with
      poisonous root stock and an edible though insipid
      egg-shaped yellowish fruit; called also {wild mandrake}.

   Syn: May apple, wild mandrake, {Podophyllum peltatum}.
        [WordNet 1.5]

   2. The fruit of the mayapple[1].
      [PJC]