Greater burdock burr (Arctium lappa). This structure contains individual fruits (achenes),attached by a papery bract (modified leaf). The end of each bract is hooked,which enables them to become attached to the fur of passing animals,or in human clothing,thus aiding the dispersal of the burr | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4368 px × 2912 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |