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Title: Citrange  
Author: World Heritage Encyclopedia
Language: English
Subject: Citrus, Citrus hybrid, Citrangequat, Citrus glauca, Kumquat
Collection: Citrus, Citrus Hybrids, Oranges
Publisher: World Heritage Encyclopedia


Genus × Citrocirus
Hybrid parentage Citrus sinensis × Poncirus trifoliata
Cultivar Rusk, Troyer, Carrizo
Breeder Herbert John Webber & Walter Tennyson Swingle
Origin USA

The citrange (Citrus sinensis × Poncirus trifoliata or C. sinensis × C. trifoliata) is a citrus hybrid of the sweet orange and the trifoliate orange.

The purpose of this cross was to attempt to create a cold hardy citrus tree (which is the nature of a trifoliate), with delicious fruit like those of the sweet orange. However, citranges are generally bitter.

Citrange is used as a rootstock for citrus in Morocco, but is not successful to prevent dry root rot, neither for exocortis.[1]


  • Cultivars 1
  • See also 2
  • References 3
  • External links 4


There is a carrizo citrange[2] and there is a troyer citrange.[3] Both are resulting of a hybrid between the trifoliate orange and the Washington navel orange. There is also a cultivar called Rusk which is resulting from a cross between a Ruby orange and a trifoliate orange.[4][5]

See also


  1. ^ Ediciones de Horticultura, S.L. "Current Situatuon of citriculture in Marocco". HORTICOM NEWS. 
  2. ^ "carrizo". 
  3. ^ "troyer". 
  4. ^ The Citrus Industry Book, Volume I
  5. ^ Rusk 1441 at the Citrus Variety Collection

External links

  • Citrange photos
  • Will the citrange trees finally grow here?
  • Lemon on Troyer Citrange Root; bud-union and rootstock disorder of Troyer citrange with Eureka lemon tops under study in effort to identify cause
  • The Citrange Story
  • Citrange fruit extracts alleviate obesity-associated metabolic disorder in high-fat diet-induced obese C57BL/6 mouse.
  • Population of Endogenous Pararetrovirus Genomes in Carrizo Citrange
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