Nicotiana Rustica, AKA Mapacho AKA Indian Tobacco AKA Wild Tobacco...
I'm sure y'all have read about this stuff, and if not, I recommend that you do so. This is a cousin of Nicotiana Tabacum whom we all know and love as regular tobacco, except it's 10-20x as strong in the vitamin N department, and not quite as refined flavorwise.
Anyway, curiosity got the better of me and I had to give it a try. I picked up a couple 2 oz rolls, in the form of ~2" segments of a roll about 2" in diameter.
It came very dry, but according to another reviewer on tobaccoreviews.com, it's best to leave it that way. It was tough to slice without crushing it, even with my very sharp Kulu knife. I got out my smallest-bowled pipe, a German vintage briar of some kind - here's a pic of the pipe next to my blending bowl and a torch lighter for size reference.
So I gathered up my courage, stuffed the bowl and lit. The flavor is tobacco-like, but somewhat harsh and although not sweet, not real bitter either. I would compare it to burley but without the sour notes. The burn went well - burned clean, no relights, and just a little ash left behind. No tongue or mouth bite.
The real story is Uncle Nick. Whooee! After one small bowl I was at about where one would be after 3/4 of an LFD Digger. I can feel the hair growing on my chest, no, I can hear it growing! So yes, it's everything they said it would be.