Poncirus Trifoliata × Sweet Orange
Cunningham Citrange
Estimated Genetic Ancestry
- 50% Sweet Orange
- 50% Poncirus trifoliata
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World of CitrusWorld of CitrusPoncirus Trifoliata × Sweet Orange
UCR records Cunningham Citrange as an unknown form received in 1914 from Dr. Fawcett’s Florida collection and gives its broad parentage as Poncirus trifoliata × Citrus sinensis, with cultivar parents unreported. The collection lists October–November fruit ripening at Riverside.[1] A 1952 Riverside report describes exocortis and bark-scaling observations in specific Cunningham-rooted trial combinations; its results depend on scion and trial setup and do not establish general immunity.[2]