What are the differences between poison sumac and pokeweed?

Not even close: Poison Sumac can cause a rash (contact dermatitis) in sensitive people. Look at pictures http://www.poison-sumac.org/ Pokeweed is more common and doesn't cause a rash. It has purple berries that will stain your skin.It is toxic to animals and people when eaten But, some people will eat the leaves on a salad when prepared right. Look at pictures http://en.wikipedia.org/wiki/Phytolacca_americana