Meaning of flowers

I'm writing a book, and I love how people communicate with flowers language, unfortunately it's not a famous topic here so it's a bit hard asking those around me, I want books about meaning of flowers, I'm willing to read the book no matter how big and complicated it can seem so I'd like a few suggestions. A flower, its name and its meaning is what I'm looking for

Edit: I'm looking for what they symbolise in both Asia and England, I want to have as much information as possible and it's such an interesting topic to read about