What is this, please?
Good morning! I've been researching this plant and I believe it is called a greenbrier. From your photos, it is difficult to tell if this is a scrambling vine with small spines along the stem, and I could not see the leaf. However, I have attached a link with a photo that you could possibly ID this on your own. Hope this helps. http://dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID=127