oh please forgive Me Rex. It was on My Walk I realized I was talking a load of dribble (again) ... it is a SHOOT ... not a Root that is Edible. The Shoot comes out of the top, sorry for the confusion, and My Cabbage Tree is a different variety, straight Trunk into the Ground with no visible Roots, but those with such Roots are to be found in more Swampy areas. I have eaten the Shoot, a Maori delicacy ... it was bitter and similar to the Welsh Leek.
Gosh! I do hope I am not punished for the explanation
ta ta for now