To identify which you have, start by putting them into two groups.
Last but not least are these three pics of Liatris scariosa. Common names include Eastern, Northern, or Blue Blazing Star. The native range in Ohio for this and the previous species are a few southern counties, and the counties surrounding the Oak Openings near Toledo. The characters I use to separate this from aspera are first the bracts. These are rounded with a smooth looking rim. A hand lens may reveal a very fine lace like edge. The bracts lay flat, like a thumb print, and are not swollen. They turn from green to maroon red. The flower stalks are also red and much longer than aspera. The leaves are not as thin, but broader throughout the plant stem.