Seed dispersion of dandelions.
Bildnummer 12349615
| Theoretically one dandelion head- Taraxacum officinale- could have produced all these plants. Seed production varies from 54 to 172 seeds per head and a single plant can produce more than 2000 seeds. The part colloquially called the seed is a dried fruit, the achene, enclosing a single seed. To the achenes is attached a parachute, pappus, of fine filements that lifts the seed away in a breeze and distributes it some distance - sometimes miles - from its parent. The achene body is covered in barbs so that it may have a further opportunity to disperse further attached to fur or feather. It is one of the reasons that the dandelion is such a successful plant. UK. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Chillmaid, Martyn F. |
| Bildgröße: | 4827 px × 3621 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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