Flowerhead of Hydrangea petiolaris
Numéro d’image : 11632155
| Hydrangea petiolaris,the "climbing Hydrangea",is a native of Russia,Korea,Taiwan and Japan. In common with most members of the species,it produces large flowerheads consisting of flower of two types. In H. petiolaris,the flowerhead is corymbose; individual flowers are held more or less in one plane due to differential growth of the stalks ( pedicels ) supporting them. Most of the flowers are fertile,but lack petals. Around the edges of each flowerhead are a few sterile flowers with four white petals. These serve as a visual attractant to insects,although the insect's reward for pollination comes from the many fertile flowers,each of which produces nectar at its centre,in addition to pollen. H. petiolaris is a hardy garden plant,suited to North-facing walls in the Northern hemisphere,to which it attaches itself by aerial roots | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 3468 px × 5212 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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