I grew this from a cutting, it has from time to time a small red/yellow flower (very odd shaped) no fruits or berry's its still young. It grows from one trunk (not multiple) and it drops its leave. I'm in Central FL.
http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=24977&d=1182908160 http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=24978&d=1182908160
I have looked since last night and taking Ron B's advice, I had, at least a clue. So I goggled Leguminosae trifoliate, and after hundreds of photos I found Cajanus cajan. Since mine are still small, I'm not sure if its it or not but they look close.