mor·el, n.  Bot.
  1. Nightshade; -- so called from its blackish purple berries. [Written also morelle.]
  2. A kind of cherry. See Morello.
  Great morel, the deadly nightshade.
  Petty morel, the black nightshade. See Nightshade.
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  petty morel
       n : unarmed woody rhizomatous perennial plant distinguished from
           wild sarsaparilla by more aromatic roots and panicled
           umbels; southeastern North America to Mexico [syn: American
           spikenard, life-of-man, Aralia racemosa]