So, what makes this tree so special? And why does it "bleed" red? The Dragon Blood Tree gets its name from the thick, red sap that oozes out when the bark is cut. Unlike normal tree sap ...

Pycnandra acuminata is a rare tree native to the shrinking rainforests ... according to odditycentral.com. Its blue-green sap reportedly contains up to 25 per cent nickel. Trees, or plants in ...