There are various candidates. Perhaps Eupatorium capillifolium, Dog Fennel. What is the geographical location?

Cosmos is my guess.

Southwest Michigan...zone 6?

Coreopsis here.

Tickseed aka Coreopsis

Marcie will know for sure if it flowers. The middle of a patch of Pachysandra and hosta just seems an odd location for a large spontaneous clump of a sun loving perennial.

Funny you should say this, because right behind this are 2 struggling Clematis...one got about 5 blossoms and the other has yet to flower! Basically, full shade! The PO's late husband was the gardener and had questionable abilities....so many plants in the wrong locations! Pachysandra everywhere (I've yanked out so much!) and stone "mulch"! I have sooooo much work to do!

I think there's a tiny bud at the top of at least one of them so, time will tell! Thanks, all!

Today, we have buds!