There's a prep school across the road from the orchard I worked at. For years, students were picking boquets of wildflowers for parent's day.Cool! "Trust but verify"...
We have a couple of plants near here that are in the "was last seen in 1870..." bin. The scientists and us are the only ones who know.
In my experience generally accepted maps can be way off, for both flora and fauna. Over the years, I've found species that were way outside of their normal ranges, when taken to experts. I think my record is over two thousand miles for a spider that can barely crawl, and that one ended up in a scientific collection.
All the best,
Peter
One year a student's parent was a biologist, and recognised the flowers as something which was only known to exist one place in the country.