Your local university should have a horticulture department with a list. A nursery not attached to a grocery or hardware store will likely have a list as well. Usually they will label the origin of each plant.
There are also plant/seed vendors who can tell you about what they sell that's native where you live. Like this (scroll down to see map!):
https://www.everwilde.com/store/Nelumbo-lutea-WildFlower-See...