A shoot axis (PO:00025029) that develops from an axillary bud meristem (PO:0000232) or from equal divisions of a meristematic apical cell (PO:0030007). [source: POC:curators]
Comment
In vascular plants, branches arise from an axillary bud meristem (PO:0000232) and from divisions of the meristematic apical cell (PO:0030007) in non-vascular plants.