I live in Elkton, MD and basically have an acre of vines! I was able to determine, from info from this site, that I have tons of poison ivy. Thanks. But not until after I got my share of the blisters. :o( I think I have properly identified PI in the bunch of pictures I have. I was also curious if two other plants I found were P Oak or P Sumac. I have no idea what they are. The pic named "what1a" and "what1b" I have a lot of. They are like mini trees 3-4 feet high. Any help would be appreciated. You have my permission to use the pics.