i had punched in tree lilac on google to get the latin name and the first stupid site listed the latin name wrong, as in the bush lilac, not the tree lilac i was looking for.
so honestly, thats why my first latin name was wrong.
i meant japanese lilac tree. (Syringa reticulata). I've only seen one of these here in Maryland. It was at my brothers new house, he didn't know what it was, I saw it in the winter and I had an extremely hard time IDing it, i didn't get it right, guess fring tree. then in spring it bloomed and he said it looked just like a lilac and smelled great too. That's when i looked it up again and found japanese lilac tree.
I'm sure there must be more, but only one i've seen.