Well Al let me make it a little more simple for you. As you must know
beekeepers put their hives close to the desired nectar source. No one in
Hawaii  puts beehives in sugar cane fields or stumps etc. and you are right
that it must be very difficult to know with absolute certainty that a honey
is 100% one floral source. As Bob St John said the bees go for macadamia
nectar last. The only pure as pure can be mac honey is gathered from hives
in large 500 plus acres of mac nuts with nothing else for the bees to
gather nectar from and then the honey is close to being pure mac honey.
Hopes this helps .
 
 
Walter & Elisabeth Patton
Hale Lamalani-Bed & Breakfast
Hawaiian Honey House-Honey Packers
27-703 A. Ka`ie`ie Homestead Rd.
Papaikou,HI.96781
"The Bee Hive The Fountain Of Youth And Health"