There is a vine in my backyard on my fenceline that I am concerned about. It originates from the ground in a single root about 1 inch in diameter. There are small spines on the stems, but they do not hurt. The leaves are bi-pinnately compound, opposite, and incised. The nodes on the stem are reddish in color. There are berries that start out green with red bumps, then become purple/blue and red. I am concerned because I have 3 small children, and if the berries are poisonous, I would like to remove the vine. I have a picture of the leaves, but I cannot post it because I can't find my USB cable for my camera. I thank everyone in advance for your help!