For some reason, I often name flowers with new, folk names, and keep the trees I know all about: oak, maple, pine, etc. It's not that I can't identify a lot of wildflowers. Perhaps because flowers tend to get more folk names. Wonder why. You probably exported wood farther, to be sure. The flowers might be dried for herb use, but even the medicinal ones would be exported rarely. None of my imaginary lands grows spices.
Or perhaps I just want to give them magical uses, and invent my own to fit in. (Hmm. Wonder if they're feral escapees from the experiments of wizards.) Then, I'm known to do it for local color. . . such are the whims of muses.