These circular woody growths are commonly found over a wide area of Australia. In some locations the growth is no larger than a golf ball, with a smooth grey bark. In other areas the growths are larger than a cricket ball and have a dark rough surface. Both types of gall contain an edible grub in the centre. The circular galls should be cracked open, revealing a hollow pink to white coloured lining. Across this lining is attached a soft tissue which in fact, is a grub. The grub is edible raw.The thin inner lining of the structure is . . .
Insect Gall, Bloodwood Apple