Does anybody have any idea what this vine is? I thought it was some kind of poison ivy variant. It is not super bushy but is has grown pretty far up into an elm tree. I jus noticed the berry on it today. It is in a mostly shady spot with plenty of indirect light. The average temp for the past 2 months here have been around 92- 95°. I have looked all over the internet for info and it's time I turn to you lovely folks for some help.