Question

What does the filament do in a flower?

Answer 1

The stamen of a flower — the part that produces pollen — consists of a slender stalk, called a filament and an anther. The filament supports the anther, which is where pollen develops. The word filament is from the Latin word filum, which means "thread."

Answer 2

The filament along with the anther form the stamen,which is the male reproductive part of a flower.

It is a thin thread like structure( like a stalk) that holds the anther,i.e. provides support to the anther and also carries the required nutrients to it.

The anther is the place for development of the pollen grains.