I get 9 or 10 flower heads from three big plants.

People use the flower head of the plant to make medicine.

I'll just rub the old brown flower head around, until they fall out.

At least one source defines it as a small flower head.

The bottom part of the immature flower head called a heart.

The flower heads are ready to be picked when they start to turn brown and appear dry.

Dig in when you can feel flower heads starting to form at the base.

Whereas surprisingly now many flower heads don't have much on them.

The base of each flower head is up to 1.6 centimeters wide.

They feed in the flower heads of their host plant.