Bungwall Fern

Description

Botanical name: Blechnum indicum
This fern has fronds to 1m length. It grows in swampy areas in many Queensland districts. While known as Bungwall by aborigines in Moreton Bay, further north it is called Dugal.

Uses

The tuberous root was soaked, roasted, and ground on grinding stones to make flour, and then cooked to make "johnny cake"
Source: Plants - Bush Tucker Medicinal and Other Uses of Minjerribah - Iselin & Shipway

It is not used today in the Bush Foods industry.