panax

from WordNet (r) 3.0 (2006)

Panax
    n 1: perennial herbs of eastern North America and Asia having
         aromatic tuberous roots: ginseng [syn: {Panax}, {genus
         Panax}]

from The Collaborative International Dictionary of English v.0.48

Panax \Panax\ n.
   A genus of perennial herbs of eastern North America and Asia
   having aromatic tuberous roots: ginseng.

   Syn: genus {Panax}.
        [WordNet 1.5]