blakea trinervis

from The Collaborative International Dictionary of English v.0.48

Jamaica \Ja*mai"ca\, n.
   One of the West Indian islands.
   [1913 Webster]

   {Jamaica ginger}, a variety of ginger, called also {white
      ginger}, prepared in Jamaica from the best roots, which
      are deprived of their epidermis and dried separately.

   {Jamaica pepper}, allspice.

   {Jamaica rose} (Bot.), a West Indian melastomaceous shrub
      ({Blakea trinervis}), with showy pink flowers.
      [1913 Webster]