Composite flowers are a type of inflorescence that consist of many small flowers grouped together to form a large, showy bloom. These flowers are also known as a ‘flower head’ and are commonly found in the sunflower family.
The structure of a composite flower is complex and unique. It consists of two main parts: the receptacle and the florets. The receptacle is the base of the flower head and is responsible for producing the structure of the composite flower. The florets are the small flowers that make up the composite flower. They are grouped together in a pattern that is specific to each type of composite flower.
The florets of composite flowers can be classified into two types: the ray florets and the disc florets. The ray florets are the outermost flowers and are often showy and colorful. They are flat and resemble petals. The disc florets are situated in the center of the flower head and are usually yellow or brown in color. They often contain both male and female reproductive organs.
Composite flowers are unique in the way that they produce seeds. Once the flowers are pollinated, the seeds are produced within the receptacle. As the seeds develop, the receptacle will become hard and fibrous, forming an ‘achene’. Achenes are the small, dry fruits that are common in composite flowers.
Composite flowers are popular in the horticultural industry due to their showy blooms and long display periods. They are commonly used in landscaping, and are often grown for their ornamental value. Some popular examples of composite flowers include sunflowers, daisies, and asters.
In conclusion, composite flowers are complex and unique inflorescences that are popular in the horticultural industry. Their structure consists of a receptacle and many small flowers, which are classified as either ray or disc florets. Composite flowers are an incredibly diverse group of plants that are admired for their beauty and ornamental value.