Just some more info and photo on this rare species.
The petals are arranged 4 in a row, compared to 3 for other normal hybrids. Therefore, it appears that there are so many petals in the flower and the flower does not look like the other double flowering hybrids when it comes to petal arrangements.
Furthermore, there are close to 30 petals altogether in one flower
The back view, which shows the 4-in-a-row petal arrangements