Common Ragweed (Ambrosia artemisaefolia) with pollen-laden flowers. Ragweed pollen is a potent allergen and a major cause of hay fever | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kaprielian, John |
Bildgröße: | 2504 px × 3848 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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