how to kill (looks like) black-eyed susan.

Question

Branches of and flowers look like black-eyed susan, but it does not have black center– all yellow.

Answer 1

There are other wildflowers that resemble black eyed Susan but have a yellow center. In any case, eradication would be the same.

This article tells how to dig out the clump. Black-eyed Susan can be persistent, so after digging, I would keep an eye out for any returning pieces of the plant and dig again, or apply an herbicide.

https://www.gardeningknowhow.com/garden-how-to/projects/removing-existing-plants.htm