This fast growing, large leafed plant sprang up this spring. In May was about 8-10 feet tall & had white flowers; now it's even taller & has small red berries. Growing in a small wooded area, up a slope from a creek. a couple more photos- including stems - at the link. http://www.flickr.com/photos/indefatigable/sets/72157627030756421/ TIA for help with id. margaret