Axillary buds (or their primordia) exist in axil of every leaf on the stem (at every node) irrespective of whether it belongs to dicots or monocots. They may not be prominent in several monocots (especially due to leaf sheath).
Axillary bud also known as lateral bud is an embryonic shoot located in the axil of leaf. It is common in woody dicotyledonous plants. However, axillary bud formation is less frequent in plants of herbaceous habit.
Axillary buds (or their primordia) exist in axil of every leaf on the stem (at every node) irrespective of whether it belongs to dicots or monocots. They may not be prominent in several monocots (especially due to leaf sheath).