Further noted on the invasive English Ivy in the forest behind my house. The English Ivy that creeps up and smothers trees is a mutant!! The shape changes as it climbs, losing it's pretty angular shape and deep green color. It fades, then rounds itself out and the pretty points are almost non existent. Seems this ivy, when determined to creep up a tree, changes it's looks. Tomorrow I will try to take a picture. I pull it out of the forest trees every chance I get.