http://railroadfan.com/phpbb/viewtopic.php?f=20&t=23133&start=20
My next door neighbor has some grotesque poison ivy growing up a Black Cherry Tree. I took these pics last fall because the poison ivy gets bright fall colors.
It gets very large leaves and the vines grow horizontal branches.
Note the large vine on the right side of the trunk. It is easily distinguishable from the black scaly bark of the cherry tree.
So, if you must climb trees to get photos. (And I think you know how I'm referring to.
That infamous poison ivy tree looks to have horizontal branches sticking out from its base. If these are coming out of a ropey looking vine, it's definitely poison ivy.
You can spot poison ivy easily this time of the year when you see a telephone pole with horizontal branches that appear to be growing from it.
Some trees have a vine called Virginia Creeper, which is in the Woodbine Family, which is not related to Poison Ivy, which is in the Cashew Family. It has leaves with 5 leaflets (only 3 are produced when the plant is flowering) and they turn scarlet in the fall. Poison Ivy turns scarlet, yellow, light green...all sorts of colors in the fall.
Also note the red colored trunks on the trees in the background, they are covered with Virginia Creeper, and are safe to climb.
Virginia Creeper is not poisonous to touch, and does not branch out like Poison Ivy. Also its vines don't grow numerous rootlets like poison ivy, rather it gets tendrils which form little suction cups whatever it is climbing.





