Categories Indoor Plants | Begonia masoniana Iron-Cross Begonia Description Popular name(s): Iron-Cross Begonia Botanical name: Begonia masoniana Family: Begoniaceae Origin: Asia (China) Height: 20 to 50 centimetres USDA zone: 12 (10 °C) Related plants:Begonia “Richard Galle” Begonia “Sparks Will Fly” Begonia bowerae Begonia conchifolia “Rubrimacula” Begonia grandis Begonia listada Begonia maculata Begonia sutherlandii Begonia × hiemalis Begonia × rex-cultorum Begonia × rex-cultorum “Dark Mambo” Begonia × rex-cultorum “Doublet” Begonia × semperflorens cv. Begonia × semperflorens cv. Begonia × semperflorens cv. Begonia × semperflorens-cultorum