Poison Ivy Tree Trunk

A viewer sent in this nice, clear photo of a tree trunk covered with massive, hairy, poison ivy vines. And since this is springtime, fresh leaves are sprouting out from the vine, in a joyful celebration of the new season. There are few other vines that have that characteristic hairy look like poison ivy. And of course, the leaves of three that a popping out are a double confirmation. 

But look at those leaves: they show typical confusing poison ivy inconsistency: some are red, but some are solid green. Some have notches, some have note, and this is all from a single vine! Some are shiny, some not so much.