| The stamen primordia differentiate from globular primordia into elliptic appendages of differing size. |
| The transfer of the pollen grain from the stamen to the stigma initiates the processes that can result in fertilization. |
| At the centre of each flower are grey-blue stamen and the plant forms a compact mass of foliage and flowers. |
| Sometimes the stamen has no filament, and the anther is then said to be sessile. |
| The pistil and the stamen of the flowers are the specialized organs responsible for the reproductive processes. |
| We also have the species Astrantia major with green flowers filled with pinkish stamen which quiver in the slightest of breezes. |
