I can write short responses, but I am not very good at writing huge discourses on such a vast subject. I can just say that what we as pipesmokers know is based upon the marketing copy on tins and in reviews. However, the farming and manufacturing side of tobacco has a whole set of other jargon that doesn't represent what we know at all.
For example, go and ask someone who works a flue curing kiln about Red Virginias, and he will look at you like you are talking about Mars or Jupiter. Virginias is mostly marketing copy. Also... what if I told you that there was no difference between a burley and a Virginia? I'm not saying that there isn't, but there are many on the other side of the tobacco fence that says there isn't. The term is flue cured, not Virginias. There is one variety of commercial flue cured called VAGold25, but the rest of the flue cured varieties have vastly different names. What we call yellow Virginias is a whole other variety of tobacco. ...and so on and so on.
If interested, there are a lot of great books on the subject, most, if written by a smoking enthusiast will use terms we are familiar with. However, if you read books intended for the other areas of the tobacco industry, you may have no idea what you're reading. It took me a few years to start to understand the curing processes, because of the language and jargon we use as pipesmokers.
And, after you get "in" on the jargon, you start to realize that what is written on the tin of tobacco no longer makes any sense, ha ha.