三叶青为葡萄科崖爬藤属多年生常绿草质攀缘藤本,又名三叶崖爬藤、金钱吊葫芦、蛇附子、三叶对、小扁藤、三叶扁藤等,是中国特有的珍稀药用植物。藤蔓纤细,有纵棱纹,无毛或被柔毛。卷须与复叶对生,卷须不分枝,藤蔓有分枝。复叶互生,掌状复叶3小叶,披针形,中央小叶较两侧小叶略大,顶端短渐尖至渐尖,基部楔形或圆形,侧生小叶基部不对称,近圆形,边缘每侧有4~6个锯齿,锯齿细或有 Clover green as the grape Cliff Climb vine perennial evergreen grass climbing the vine, also known as clover climber, money hoist, snake Fuzi, clover pair, small flat vine, Trefoil flat vine, etc., is endemic to China Rare medicinal plants. Vines slender, longitudinally ribbed, glabrous or pilose. Tendrils and compound leaves opposite, tendrils unbranched, vine branches. Compound leaves alternate, palmately compound leaflets 3, lanceolate, central leaflets slightly larger than both leaflets, apically short acuminate to acuminate, base cuneate or rounded, lateral lobular base asymmetric, subrounded, margin There are 4 to 6 serrations on each side, serrated fine or have