Burdock stem. Light micrograph of a cross-section through a primary stem of a burdock plant (Arctium lappa). This shows a ring of vascular bundles (red and yellow),which transport water and nutrients | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wheeler, Dr. Keith |
Taille de l’image : | 5341 px × 4724 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |