All the flowers come at the same level due to equal size of their pedicels in

Explanation

The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence. It is usually seen in pedicellate flowers (e.g., Roses). The flowers without pedicels are called sessile flowers (e.g., Sunflower).In an umbel, each of the pedicels initiates from about the same point at the tip of the peduncle, giving the appearance of an umbrella-like shape.