It is usually useful to have photos of the whole plant from the side as well as close ups of leaves along with the flowers. Some types of Joe Pye weed are now classified in the genus Eutrochium though it used to be Eupatorium. I can’t see enough of the plant’s other details to tell which this is.

Flowers look different here: https://www.bing.com/images/search?q=waldsteinia&qpvt=waldsteinia&FORM=IGRE However following one of the other species shown in the panel on the same page we do get similar flowers: https://www.bing.com/images/search?q=Waldsteinia+Lobata&FORM=IRIBQP

I have quite a lot of bloodroot...this isn’t it...it is also finished blooming, and it has largish lobed leaves. Other ideas? Jan

Just because I am not all that familiar with the Rubiaceae, this thread prompted me do a little more curiosity based research and of course, my Google search turned up Wikipedia as the first hit. OMG!! I am a very experienced gardener, have a degree in horticulture and have taken tons of botany and plant ID classes - even taught a few - but I have never encountered the degree of technicality that article applied to describe this wide and varied plant family! Virtually every sentence had at least one multisyllabic botanical descriptor I have never heard of! I am not sure I am any more informed than I was before reading that and I certainly feel a whole lot dumber :-) Maybe I need to go back to school...........