Anthesis

La before sequential of the individual flowers of this inflorescence Banksia menziesii It's starting from the bottom up.

The anthesis (from the Greek ἄνθησις "flowering") is the period of flowering or flowering of flowering plants; strictly, it is the expansion time of a flower until it is fully developed and in a functional state, during which the pollination process occurs, although it is frequently used to designate the flowering period itself; the act of blooming The pre-flowering stage is often called preanthesis.

The development of the anthesis is spectacular in some species with multiple flowers:

In Banksia species, for example, the anthesis exposes the ends of the styles from the upper parts of the perianths of each individual flower, bottom first. low of the inflorescence until full bloom reaches the flowers at the top.

The anthesis of the Banksia flowers is sequential in the inflorescence, so when the styles and perianths develop sequentially with different colors, the result is a striking color change that gradually moves from bottom to top along the inflorescence.