Stem of with internodes (1, 3) and node (2); stem base on the right side, stem apex on the left side

Note different diameters between the node and the internodes (1 3) as well as between both internodes (1 <p><b>Copyright information:</b></p><p>Taken from "Quantitative and qualitative changes in primary and secondary stem organization of during ontogeny: functional growth analysis and experiments"</p><p></p><p>Journal of Experimental Botany 2008;59(11):2955-2967.</p><p>Published online 23 Jun 2008</p><p>PMCID:PMC2504350.</p><p>