what is the androecium?
The stamens of a flower collectively called as Androecium. Stamens are usually referred to as the male reproductive part of the flower. Each stamen has two parts:
Anther: The anther is a small sac like structure which holds the pollen and is the site of pollen development.
Filament: The filament is a thread stalk like structure, which holds the anther up. The filament transmits water and nutrients to the anther and positions it to aid pollen dispersal.