What are these?!

[Magd3576]

Recently cut a leggy aglaonema (cutting is happily rooting) and I’ve got her stump hanging out in her own pot in case she feels like growing again. I know that it had some prior over watering and I’m more careful and methodical about that now. I cut back some of the root (maybe I should be cutting more?) but what on earth are these little bulbs pushing their way out of the trunk? Is that normal?

 

[Magd3576]

In case any plant newbies come across these aliens like I did last year when I began my pandemic/isolation-induced preoccupation with my houseplants--they are rhizomes. The coloring on these looked a little scary so I was worried they were rotten, but I put them in soil and watered them once a week for a couple of months just as an experiment and they grew new plants!