Vegetative stem: N = node, I = internode, B = branch in whorl, L = fused megaphylls

Image descriptions and articles

• Vegetative stem: N = node, I = internode, B = branch in whorl, L = fused megaphylls (Equisetum)
• Vegetative stem: N(ode), I(internode), B(ranch in whorl), L(=fused megaphylls) (Horsetail)