For years my husband kept trying to remove a weed that was very persistant. Everytime he thought he had removed it, the thing would just grow right back. We figured it was a weed of some kind because we had never planted a tree. But lately I was doing a search and came across a tree that had leaves very similar to our "weed". The tree was a Dwarf Sumac. Is that what this thing is? The bees sure love it!