Foliage experts?

[KristinCB]

For a long time now i've been wanting to do a series of kits inspired by national parks/landscapes and different areas of the worlds (biomes- i just really really hate that word). I want to cover all national parks areas just in a broader scope

what has stopped me is my worrying about making sure that if i were to do a kit like this I added the correct flowers/foliage that certain areas have. I don't want to put pine elements in an area that those don't grow in but I'm not exactly smart when it comes to knowing this sort of things and this is what has been holding me back from doing these kits.

I know there are some apps I could use to identify certain things but does anyone have any suggestions on what else I could do to make sure i'm doing things right? Am I overthinking the process entirely?