A boutonniere is a small floral decoration worn on the lapel of a suit jacket, typically by men. It is usually made of a single flower or a small cluster of flowers, and is often accompanied by greenery. Boutonnieres are most commonly worn at formal events, such as weddings, proms, and funerals.
The tradition of wearing boutonnieres dates back to the 16th century, when they were first worn by European noblemen. At that time, boutonnieres were often made of fresh flowers, and were used to signify the wearer’s social status. Today, boutonnieres are still worn as a symbol of formality and elegance.