1) Briar 2) Brier 3) Bullbrier 4) Greenbrier 5) Horse brier 6) Horse-brier 7) Smilax rotundifolia 8) Vine 1) Bullbrier 2) Greenbrier 
(from the article `Smilax`) genus of plants in the family Smilacaceae, consisting of about 300 species of woody or herbaceous vines, variously known as catbriers and ...