Kinshi Tree peony
Keiko Itoh peony: One interesting thing about this species is that the flowers start out with a very bright pink tone, but after they are open for enough days, their coloration will fade to almost a white while the center stays pink, and petals completely open up. Buds also seem to mature at different rates making for a longer blooming season than herbaceous peonies.
They tend to close up when it starts getting dark
Herbeceous pink and white peonies