Do you mean Jerry’s solo album "Reflections" ?
The Dead were clearly very much influenced by Roots genres such as Blues, Country, Bluegrass and Folk but also by other genres (not to mention their experimentation with psychedelics). I’d suggest American Beauty, Workingman’s Dead and portions of Europe ’72 fit more convincingly into the Americana category than Reflections. But others might disagree.
An example from Europe ’72, later covered by Levon Helm:
https://www.youtube.com/watch?v=K5KEQ-sC6vg
I will check out Ryan Bingham!