The bud to leaf ratio is a bit off lol.
The plant can change it's tissues from one form to another, like stem>root so it's not that unusual to see. I've seen others get it with certain genetics...OGKB comes to mind. You can get a small tiny bud there, but usually it's underdeveloped.
Basements usually get water due to improper water management with gutters and downspouts, and hydrostatic pressure from under the slab - water table. The easy fix for gutters and downspouts is to make sure you're getting water away from your foundation, otherwise the downspout dumps it right where you don't want it, behind the basement wall. The sump won't help with that, it only helps to keep down hydrostatic pressure from under the slab, and to pump out any water that found it's way in through the walls.
Sump is for the floor, downspouts help deal with the walls. If none of that works, you can cut a french/trench drain in the basement floor that will direct all water to a sump. You can also use elastic and polymer paints to seal the walls. You can usually do most of this work yourself, it's no harder than growing decent plants and we are all there often enough.
With that said, I'm a second floor kinda guy if I get a choice.
