Tree peony is the vernacular name for the section Moutan of the plant genus Paeonia, or one of the species or cultivars belonging to this section. It consists of shrubs that have perennial aerial wood
Tree peony hybrid 'Maxime Cornu' of the P. × lemoinei group, is a hybrid between subsection Delavayana (P. delavayi) and subsection Vaginatae (P. suffruticosa 'La Ville de Saint-Denis').
Paeonia californica is a perennial herbaceous plant of 35–70 cm high, that retreats underground in summer, and reoccurs with the arrival of the winter rains. It has lobed leaves, elliptic drooping flo