Twin Peonies?

Two peony plants:

On the left is one grown from a piece of root rescued from a garden in Coburg four years ago, and which had its first flower last year.

On the right is Vesuvian, which I was given for my birthday in 2016.

Neither of them look like they are flowering, but in fact there are several flowers on each plant. On both of them the flowers are hidden under the leaves.

Mystery peony flower:

Vesuvian flower:

The difference in colour is because of the angle of the sun on them. In real life they appear identical. What would be the chances of them both being the same variety?

Another plant where the flowers are under the leaves (although in this case that's a good thing as you look at it from underneath):

Wisteria flowering on the pergola.