The Path to Becoming a True Fighter
Series

The Master:

As Sir Hudu mentioned, your next destination is the Fungi Hillock. There are no Quest Flags to show you the way so you have to find the master on your own. He is located at the X:

He is standing outside of a small hut:

Go North to this location:

There you will find the Bush, it has many sections to pull from so you can get even more than 3 if you wish, any extras will appear in the inventory but are good for nothing but selling for gold:

Bring the bush back to the Master for your reward: