Shower of pollen. Wind dispersal of pollen from male catkin flowers of an oak tree,Quercus sp. A shower of pollen falls in a light wind. Catkins are pendulous flowers of some trees,which are specially adapted to maximize pollen dispersal by wind. Oak trees flower in May-June producing copious quantities of pollen which is a major cause of hay fever (medical term Allergic rhinitis and pollenosis) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Burgess, Dr. Jeremy |
Bildgröße: | 4961 px × 4081 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |