WTF???: another name this plant

I literally pulled this off a weed pile at work.

I know this about it:

  1. It's very very thirsty

  2. It's covererd in a thick coat of dust naturally

  3. It has very shallow roots (see number #1)
  4. For some reason I really like it, it's perfect under my spigot where it's all leaky and stuff

The best answer offered (and only!) is Ligularia sibirica which makes sense because of the very thirsty part. The leaves are very leathery, which I wouldn't expect in a Ligularia but it looks like the other pictures when I Google it enough!

Can't wait to see if it blooms, that' would make it alllllllll so easy!