Tree Peonies in flower

Tree peonies?  Most people are confused, but indeed, one species Peonia suffruticosa.  TPP discovered their existence by accident when a graduate student after he rejuvenated an old shrub growing along side the Phactor's apartment, and it burst forth the next spring with these huge, pink tissue-paper peony flowers as big as your head.  It was love at first sight. This species doesn't grow up north where the Phactors came from, so this was a whole new thing. These shrubs are only sort of woody, and not a tree at all, but they produce huge flowers and they can be yellow (!), which without hybridization you don't find in herbaceous peonies.  This particular image show three of TPP's 9 tree peonies at their flowering peak, and with rain predicted, they won't look this good again.  You can imagine what rain does to such large, double flowers. The tallest of these is about 4 feet.