Orange blossom

[1] Orange blossom essence is an important component in the making of perfume.

The petals of orange blossom can also be made into orange flower water (as an alternative to rose water), a common part of both French cuisine and Middle Eastern cuisine (most often as an ingredient in desserts and baked goods).

It's also present in Hispanic culinary traditions, with notable examples being Mexican pan de muerto and Spanish Roscón de Reyes.

[2] In Spain, the orange blossom lends its name to the Costa del Azahar ("Orange Blossom Coast"), the Castellon seaboard.

Fallen blossoms are dried and used to make tea.