No problem. It is just some plants may be able to be hybridized & then it can become confusing to people that just make lists of names of plants & say,"Oh that has to be closely related to THAT one, & must be lumped together, because if those two can make a plant, then they're very closely related *!" & ought to be in the same species, or Genus & change it all up & suddenly, you find out , it just really doesn't always work out that that way. While they may have studied alot about them in book, after book, those people , may actually have NEVER seen or even, even grown it, to know. about it !
Mainly in the minds of those, trying to rearrange things & have them all fit nice & neatly all into a box, as if it's a way to identify something on a piece of paper & do you draw a check mark into that box, & make a mark in it , or not ? Or, do you check off the other next box, ? But living organisms don't always fit so neatly all into a box, like they would like to have them all fit so nice & neatly, into one ,& print it out & publish it ! They just simply read about the plant, never actually grew it, so they are 'book smart" but have no actual experience or knowledge about having actually ever grown it, to know something more about it...then get a consensus & "vote" about it, to come up with a "solution" having "agreed " about it, which doesn't necessarily make it so..