Why are oaks marcescent?
Marcescence is a fascinating phenomenon observed in certain tree mintage , include oaks . It refers to the retention of bushed leafage on a tree throughout the wintertime month , even after they have dried up and turn browned . While the exact ground for marcescence in oaks is not full understood , there are several theories that attempt to excuse this behaviour . One theory suggests that marcescent leaves swear out as a protective mechanism for the tree during wintertime ....