I'm familiar with may apples...my hunting land in Marshall county is covered up with it. You also referred to "gooseberry brush" in your post. Is that the same as the gooseberry that we grow in our garden to make pies with? (See attached picture). I've read that there is an American strain of gooseberry native to the northeast, but I've never seen it in the wild. If it's the same stuff, I'd better not tell my wife, she'll pick 'em all and ruin the hunting.
I've found deer to be real fond of American beautyberry (Callicarpa americana ) and cat brier (Smilax rotundiflora), too. Those are two things I've always got my eyes open for when scouting.