I must admit I wish I knew the names of more trees and flowers but I'm pretty good compared to the average person in the street.
I must admit I miss gum trees and Australian natives, but are more conscious that people do not talk about trees they way they would have 50 or 100 years ago. Yes we all know an Oak tree and Pine trees, but for the majority of people that is as far as it goes.
Bee Keeping means I'm more conscious of what is flowering locally but I'm blind to trees that have not got pollen, nectar or propolis for the bees. We are all guilty of taking trees for granted