This is a Rex Cultorum begonia, likely a large-leaved spiral in classification, probably a Tim Anderson (founder of Palm Hammock) hybrid, probably unnamed. Tim was a prolific hybridizer of many oh so gorgeous plants. He did so many that often they did not get named. Rex Cultorum is a special classification with color filled leaves, all with a species Begonia rex in their background. Interestingly enough, B. rex itself is not classified with its offspring, but is classified as a Rhizomatous, Distinctive Foliage.
