Mono Monday/Change

Banksia flowers are usually a shade of yellow, but orange, red, pink and even violet flowers also occur.
The colour of the flowers is determined by the colour of the perianth parts and often the style.
The style is much longer than the perianth, and is initially trapped by the upper perianth parts.
These are gradually released over a period of days, either from top to bottom or from bottom to top.
When the styles and perianth parts are different colours, the visual effect is of a colour change sweeping along the spike.
This can be most spectacular in the Acorn Banksia and related species, as the white inflorescence in bud becomes a brilliant orange.
"Wikipedia"

This Banksia Cone was a brilliant orange, it has already started to change, as it slowly dies to become a seed pod for the next Banksia Cones ...