Color Surprise

Red maples have started turning in the Pennsylvania woodlot.Poison ivy has been brilliant red for some time.The autumn foliage of this common vine belies the suffering it causes many if they happen to touch it.It is the first of the plants to turn here.Probably few laymen realize that the color they've been admiring is poison ivy climbing up the trunks of all those trees.The fall display is the flip side of this native plant's existence in civilization.