Sunflower. Head of a sunflower,Helianthus sp. This large compound (composite) flower is made of many smaller flowers which form the dark inner portion as well as the yellow petals. Sunflowers are grown for their striking flowers and commercially for their seeds and oil. The plant can grow up to 3 metres tall and is famous for its ability to follow the sun due to increased growth of the side of the stem in the shade | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Allen, Steve |
Taille de l’image : | 3792 px × 4730 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |