This is the rarely seen hybrid between A. pachypoda and A. rubra, we discovered by chance during a random wander through the woods.
It combines traits of both parents: red fruits like A. rubra, however, not shiny and with bigger black dots and thicker pedicels like A. pachypoda. Also, the raceme is more open reminding of A. pachypoda. Flora of Michigan presents a short description; in mature exemplars the thickness of the fruits stalks and colour are a very good indicator, but there are also other more detailed differences. At maturity the petioles are also red coloured.
What would come out of these seeds I cannot really tell but I am very curious. So, just a few for those who are like me.
Germination: like for all Actaea spp.