Paeonia parnassica

Paeonia parnassica, the Greek peony, is a plant that is native to the mountains of south-central Greece. The flowers are produced in late spring with a deep maroon red colouring on 65 cm stems. The blooms are large, up to 12 cm in diameter and bear a boss of rich orange stamens. This peony was once included with the species "P. mascula".
Genetics.
The Greek peony is an autotetraploid (4n=20) of which the diploid parent must have gone extinct.