Source : Webster's Revised Unabridged Dictionary (1913)

Poon \Poon\, n. [Canarese ponne.]
   A name for several East Indian, or their wood, used for the
   masts and spars of vessels, as {Calophyllum angustifolium},
   {C. inophullum}, and {Sterculia f[oe]tida}; -- called also
   {peon}.

Source : WordNet®

Sterculia foetida
     n : large tree of Old World tropics having foul-smelling
         orange-red blossoms followed by red pods enclosing
         oil-rich seeds sometimes used as food [syn: {kalumpang},
         {Java olives}]