Mistletoe-A Beautiful Thief
The mistletoe has green leaves, and so is able to take carbon from the air, and to manufacture sugars and starches. But it sends its roots into the bark of a tree, and draws its moisture and part of its nourishment from the cambium layer and sap-wood of its host. The seed of the mistletoe is covered with a very sticky pulp (used sometimes for making bird-lime), which adheres to anything it touches, and so is likely to find appropriate lodgment on the trunk of a tree. Should it fall to the ground instead, its days are numbered.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 1