Does anyone know what this red vine with small thorns is? See attached pdf picture. It's all over the wooded part of my yard and is spreading. I live in Wayne, PA - Northeast, USA. How can I get rid of it? Thanks in advance, DLS III
Rubus of some sort. This perhaps? http://upload.wikimedia.org/wikipedia/commons/6/69/Starr_011205-0065_Rubus_ellipticus.jpg