I was hoping some of you with more experience know what flower yields a metallic green , almost black pollen . My bees have carried this back to their hive the past couple years, but I can't figure out where it originates ..... in low light it looks black but it seems to have an irridescent metallic green sheen in certain light.
I know a bee inspector who was trying to figure out where some blue pollen came from in a hive he was inspecting. He mentioned it to the farmer/beekeeper who said he knew where it came from. The farmer took the inspector to an old tractor with blue peeling paint and there were the bees chewing off pieces of the paint.