Fig. 5. Diagrammatic representation of a plan view of a 3‐year‐old main branch of N. dombeyi and N. pumilio and all growth units derived from them. Growth units of different axis types are differentiated by colour: main branch, blue; secondary branch, green; short branch, red. Leaves have been drawn on those growth units derived from a main branch, a secondary branch and a short branch of each species. Limits between main branch annual growth units are indicated by dashed arcs. See text for details.