Auxin producing area of a plant

                                                     18. Auxin producing area of a plant

This is a picture of buds on a tree, which represents an area of a plant that is high in auxin. Auxin is a hormone in plants that promotes growth and development of buds. Auxin is often found in buds because it helps with the elongation of stems, differentiation, the growth of roots, fruits and flowers, and branches.