Androecium
/an-DREE-shee-um/The androecium is the collective name for the male parts of a flower — every stamen it carries, together with any staminodes, the sterile stamens that produce no pollen. Botanists treat them as a single unit because the count, the arrangement and whether the filaments stand free or are fused into a tube are among the most dependable characters for telling plant families apart. In a typical flower the androecium sits inside the perianth and surrounds the female parts at the centre, so working outwards you meet sepals, petals, then stamens, then the ovary.
Etymology
From New Latin, from Greek andr- ("man") + oikion, a diminutive of oikos ("house") — literally the house of the male parts.
Example
“Count the androecium before you key the plant out — ten stamens in two bundles is a strong family clue.”