• Sepals enclose the flower.

• Petals may be brightly colored to attract pollinators.

• Stamens produce pollen on the anther.

• Carpels produce ovaries, and may receive pollen on the stigma.

A perfect flower contains both male and female structures.

An imperfect flower may be staminate and contains no carpels, or carpellate and contains no stamens.

Some flowers have a composite inflorescence (cluster of flowers).