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'The Czar' has two registered sports: "Camellia japonica" 'Hugh Kennedy' and "Camellia japonica" 'Fiona Capp'. There is also "Camellia japonica" 'The Czar Variegated' — a virus variegated form of 'The Czar' originating from Camellia Lodge Nursery in Noble Park, Victoria in 1959.