What is the axillary bud?
An axillary bud is a sprout that develops in the axil of a plant, which is the angle formed by the upper side of the stem and an outgrowing leaf or branch. These embryonic shoots develop exogenously from the outer-cortex layer of the plant at the axillary intersection and eventually grow into new stems. At times the bud may give rise to flowers rather than branches (axillary shoots), and in that case, the buds are called floral buds.
Axillary buds can produce new shoots to promote the growth of the plant and may be specialized by giving rise to either vegetative shoots or reproductive shoots. Axillary buds may either remain inactive for some time or generate a shoot immediately after their formation.
Axillary buds are also known as lateral buds