Sid Pullinger wrote:
Dear friends:
After my post to Bee-L regarding possible oringin for green or black
colored pollen, a dear friend from the Canary Islands (Spain) wrote to
tell me the names of three known plants in the Canary Islands which
yield black pollen:
       1.  red poppy    =    Papaver roheas
       2. white poppy  =   Papaver somniferum
       3. tedera (local name)  = Psoralea bituminosa
     In retrospect, I remember with nostalgia my trips to the country
side while in residence in Spain, the amazing beautiful red color of the
poppy-covered fields.
Best regards.
Dr. Rodriguez
Virginia Beach, VA