Anna P. answered 01/20/25
Adjunct Assistant Professor with 15+ years teaching experience
The species is not a real plant, but the genus Roystonea exists. This is a group of palms that's commonly known as Royal Palms. They grow in the tropical and subtropical regions of the Americas.
There is a Roystonea regia species, which is the Florida or Cuban Royal Palm. This might have been the inspiration for the plant species in the book.