Caladium lindenii

(André 1872) Madison 1981

Formerly this species was in the genus Xanthosoma and still it's being sold as X. lindenii.

Two photos from two different sources. Maybe the left one is a dwarf cultivar or they used a retardant. I've also read about 'Magnificum' cultivar of C. lindenii.

Paul Resslar's page on C. lindenii Philippe Faucon's Desert-Tropicals C. lindenii