Peony is incorrectly written and it should be written as "peonies" being its meaning: The peoniaceas (Paeoniaceae. ) they constitute a monogenerica family of plants dicotoledoneas rhizomatous originating from various regions of Europe, end East ( especially from China ) and North America, usually referred to as peonies.Paeonia, the only genus in the family, comprises about 40 accepted, the 170 described species. About 20 are also accepted the described 230 infra-specific taxa.