The term 'flower feature' refers to the four main parts of a flower: STEM, SEPAL, CALYX, and PETAL. The STEM is the part of the flower that connects it to the plant and provides support. The SEPAL is the outermost layer of the flower, which protects the inner parts. The CALYX is the next layer of the flower, which is usually green and contains the sepals. Finally, the PETAL is the innermost layer of the flower, which is often brightly colored and gives the flower its distinctive shape.