The root is like a bulb. Although that is not an acurate description.
The "bulb" is sort of "cylindrical" shaped yet not like a rhizome shape such as with java fern. And there are several nodules on the bulb where the roots come out. The leaves come out from the top of the bulb and they all come out very tightly wrapped around each other at the center.
I will pull the plant up and take a pic tomorrow. Last night when I took the pic that is in the link I left my camera on and now I have to charge the batteries.
The only thing I know for sure, is that I do not know everything. -Plato