| S. No | Monadelphous Stamens | Syngenesious Stamens | Synandrous Stamens |
| (i) | All the stamens of a flower are fused in one bundle by their filaments only. | Anthers of all the stamens are fused. | Anthers and filaments of all the stamens are fused. |
| (ii) | Staminal tube is formed around the base of the pistil which may extend to cover the style. | Fused anthers make a tube around the style. | Fused anthers and filaments form a compact mass. |
| (iii) | Anthers and upper part of the Filaments are free. | Filaments of all the stamens are free. | No part of stamen is free. |
