It is a type of inflorescence (pattern of arrangement of flowers) in which, younger flowers are present at the tip while older ones are located at the base.
Racemose inflorescence shows this type of succession.
In racemose inflorescence, the flowers are arranged in such a way that the main axis continues to grow and does not terminate in a flower.
Centripetal succession:
It is a type of arrangement of flowers where older flowers are present in the periphery and the younger ones are located in the center.
It is also a type of modified racemose inflorescence.