Regina the Reluctant

I was a bit bored, so I decided to see what was going on beneath the soil of Regina.  I found lots of healthy-looking cord roots and a peeper trying to peep.  It appears that when suckers form a large, pimple-like nodule forms.  It later breaks open when the sucker emerges.  The busted nodule forms a ring at the junction of the mother corm and the sucker.