The citrangequat is a

citrus ''Citrus'' is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is nati ...

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two diff ...

of a citrange and a

kumquat Kumquats (; zh, 金桔), or cumquats in Australian English, are a group of small fruit-bearing trees in the flowering plant family Rutaceae. Their taxonomy is disputed. They were previously classified as forming the now-historical genus ''Fort ...

, developed by Walter Swingle at

Eustis, Florida Eustis is a city in Lake County, Florida, United States. The population was 23,189 at the 2020 census. It is part of the Orlando–Kissimmee–Sanford Metropolitan Statistical Area. Eustis High School is the town's local public high scho ...

, in 1909. Citrangequats are

bitter Bitter may refer to: Common uses * Resentment, negative emotion or attitude, similar to being jaded, cynical or otherwise negatively affected by experience * Bitter (taste), one of the five basic tastes Books * ''Bitter (novel)'', a 2022 novel ...

in taste, but are considered edible by some at the peak of their maturity. Three named

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...

s exist: *'Sinton' – Nagami kumquat (''

Fortunella margarita Kumquats (; zh, 金桔), or cumquats in Australian English, are a group of small fruit-bearing trees in the flowering plant family Rutaceae. Their taxonomy is disputed. They were previously classified as forming the now-historical genus ''Fortun ...

'') x Rusk citrange; named for the city of Sinton, Texas *'Telfair' – Nagami kumquat x Willits citrange; named for

Telfair County, Georgia Telfair County is a county located in the central portion of the U.S. state of Georgia. As of the 2010 census, the population was 16,500. The largest city and county seat is McRae-Helena. In 2009, researchers from the Fernbank Museum of Na ...

*'Thomasville' – most common citrangequat; named for the city of

Thomasville, Georgia Thomasville is the county seat of Thomas County, Georgia, United States. The population was 18,413 at the 2010 United States Census, making it the second largest city in southwest Georgia after Albany. The city deems itself the "City of Roses" an ...

. 'Thomasville' is considered the most cold-hardy edible citrus variety. It can tolerate temperatures down to −15 °C (5 °F).Cold Hardy Citrus and Hybrids
''Limette'' (Newsletter Citrus Friends Europe) 8: 1–2.

References

Oranges (fruit) Citrus hybrids Food and drink introduced in 1909 Kumquats {{Fruit-stub