*sigh*

It's true isn't it. The more you find out, the more you realize you have not found not. The more you know, the less you really know. 

The more you try to dig deeper, the bigger the mess you realize it really is.

But... There should come a point when it all makes sense, despite the mess.

I can't wait to arrive there.

I think too because Man gives plants their name and their classification, these things changes and there's not clear cut answer to a classification scheme.