How do you tell tobacco types? Newbie help

Ok, so we're getting closer to what I'm looking for, thank you.

I have a few cobs, and a briar. What I am asking is, how do I tell if a tobacco is aromatic, American, English, or Oriental?

I wouldn't want to say if it's not flavored, it's not one of the three, because it seems to me that certain blends would have a 'flavor' even if they weren't aromatic...does that make sense?

I just want to avoid ghosting...frankly, I have no idea what I'm even trying to ask now. I've just read that some of you have pipes for certain blends (naturally) so I'm just trying to follow suit and keep things tidy.