What is this plant?

Asked August 12, 2015, 1:39 PM EDT

My mom in Champlin, Minnesota, has this plant growing in her garden. It is currently 10 feet tall and has a woody stem with what looks like fuzz and seeds at the end of each branch. Leaves vary with small leaves having three points and large ones having five. What is this plant? Thank you!

Hennepin County Minnesota

1 Response

This is called great ragweed (Ambrosia trifida).