A boutonniere is a small flower arrangement worn on the lapel of a suit jacket or tuxedo. It is typically made with a single flower or a few small flowers, and is often accented with greenery or other decorative elements. Boutonnieres are a popular accessory for weddings, proms, and other formal events.
The tradition of wearing boutonnieres dates back to the 16th century, when men would wear a single flower in their buttonhole to signify that they were available for dancing. Today, boutonnieres are still a popular way to add a touch of elegance and style to a formal outfit.