First you see me in the grass dressed in yellow gay; next I am in dainty white, then I fly away. What am I?

Why this works

This riddle cleverly describes the life cycle of a dandelion using vivid imagery. Initially, the "grass dressed in yellow gay" refers to the dandelion's bright yellow flowers that bloom in grassy areas. As it matures, it transforms into a "dainty white" puffball of seeds, which is when it “flies away” as the wind carries the seeds off to propagate new plants. The riddle captures the beauty and transition of this common flower in a whimsical way!