Aroid I don't know, some kind of Philo?
Found this at the garden center today, in the ICU section. It was in a GIANT pot and I asked the guy if he could just pull it since I can't deal with a pot that big, and I wanted to see the roots first. He started pulling, and pulling, and pulling, and finally the whole root came out, almost 4 feet long! When I got home I checked it out closer and noticed a bunch of nubs where it's getting ready to break out into new stems. A 4-foot root is totally not necessary and wouldn't fit in any pot I have, so I cut it off. The inside of the root is an orangish purple color. The leaves are so pleasantly smooth to touch.
I left this part of the still-attached root on the main plant uncovered because of these 2 nodes.
I don't know if those pieces of root will make their own plants, but I was cutting it off anyway, worth seeing what happens and it just looks like they will grow, each has a foliage nub at the top.