A boutonnière is a small floral decoration worn by men, typically pinned to the lapel of a suit or tuxedo. It usually consists of a single flower or a small cluster of flowers, often chosen to match the colors of the event or the attire. Boutonnières are commonly seen at formal occasions like weddings, proms, and other celebrations, adding a touch of elegance to the outfit. The tradition of wearing a boutonnière dates back to the 16th century, when men would wear flowers to signify their social status or to express romantic interest. Today, they are often coordinated with the bride's bouquet or the bridesmaids' flowers, making them an important part of wedding aesthetics.