Male fern (Dryopteris filix-mas) rachis and pinnae spirally wound - circinate vernation before uncurling to form a bipinnate leaf in spring, May. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cattlin, Nigel |
Taille de l’image : | 4016 px × 6016 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |