What is this flower?

Asked October 5, 2014, 12:00 PM EDT

This little white flower appeared under a viburnum bush this summer/fall. It looks like a white ageratum. The leaves are opposite. Is it an ageratum? Thanks!

Howard County Maryland plant identification white snakeroot

1 Response

We're thinking that your plant is Ageratina altissima v. altissima (Eupatorium rugosum),a native woodland plant commonly known as White Snakeroot.