Source : Webster's Revised Unabridged Dictionary (1913)

   {Salad burnet} (Bot.), the common burnet ({Poterium
      Sanguisorba}), sometimes eaten as a salad in Italy.

Source : WordNet®

salad burnet
     n 1: European garden herb with purple-tinged flowers and leaves
          that are sometimes used for salads [syn: {burnet
          bloodwort}, {pimpernel}, {Poterium sanguisorba}]
     2: leaves sometimes used for salad