Here is another picture of it.

Ageratina altissima, and yes it is sometimes called white snakeroot.

Thanks :)

I thought White Snakeroot was Eupatoirum rugosum

Did you mean it's sometimes mistaken for White Snakeroot?

Just wondering.

Oh I see it's from the "tribe" of Eupatorieae

I have so much to learn!!

Eupatorium rugosum is an older scientific name for Ageratina altissima. With the advent of being able to do DNA testing a lot of nomenclature seems to have been shaken up.