''Begonia rex'', the king begonia, is a species of flowering plant in the family Begoniaceae. It is found from

Arunachal Pradesh Arunachal Pradesh (, ) is a state in Northeastern India. It was formed from the erstwhile North-East Frontier Agency (NEFA) region, and became a state on 20 February 1987. It borders the states of Assam and Nagaland to the south. It shares int ...

to southeast China, and has been introduced to Bangladesh, Cuba, and

Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ht, Ispayola; tnq, Ayiti or Quisqueya) is an island in the Caribbean that is part of the Greater Antilles. Hispaniola is the most populous island in the West Indies, and th ...

. It is a parent to over 500 cultivars in the ''Begonia'' Rex Cultorum Group of houseplants. Other parents in the multitude of crosses made during the creation of the Group include '' Begonia annulata'', '' B.cathayana'', '' B.decora'', '' B.diadema'', '' B.dregei'', '' B.grandis'', '' B.hatacoa'', '' B.palmata'', and '' B.xanthina''. The following cultivars in the ''Begonia'' Rex Cultorum Group have gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

: 'Benitochiba', 'Carolina Moon', 'China Curl', 'Curly Fireflush', 'David Blais', 'Dewdrop', 'Emerald Beauty', 'Escargot', 'Fireworks', 'Green Gold', 'Helen Lewis', 'Hilo Holiday', 'Ironstone', 'Martin Johnson', 'Midnight Magic', 'Mikado', 'Namur', 'Orient', 'Pink Champagne', 'Princess of Hanover', 'Red Robin', 'Regal Minuet', 'Rocheart', 'Roi de Roses', 'Sal's Comet', 'Sea Serpent', 'Silver Cloud', 'Silver King', and 'Silver Queen'.

References

rex House plants Flora of Assam (region) Flora of East Himalaya Flora of Myanmar Flora of South-Central China Flora of Southeast China Plants described in 1857 {{Cucurbitales-stub