Familia: Rutaceae
Subfamilia: Aurantioideae
Tribus: Aurantieae
Subtribus: Citrinae
Genus: Citrus
Species: C . assamensis  ? C . australasica  ? C . australis  ? C . cavaleriei  ? C . garrawayae  ? C . glauca  ? C . gracilis  ? C . halimii  ? C . hystrix  ? C . indica  ? C . inodora  ? C . japonica  ? C . khasya  ? C . latipes  ? C . lucida  ? C . mangshanensis  ? C . maxima  ? C . medica  ? C . neocaledonica  ? C . oxanthera  ? C . polytrifolia  ? C . pubinervia  ? C . reticulata  ? C . swinglei  ? C . trifoliata  ? C . undulata  ? C . wakonai  ? C . warburgiana  ? C . wintersii

Natural Nothospecies: C . × aurantiifolia  ? C . × aurantium  ? C . × limon  ? C . × tachibana
Artificial Nothospecies: C . × amblycarpa  ? C . × floridana  ? C . × georgiana  ? C . × insitorum  ? C . × junos  ? C . × latifolia  ? C . × microcarpa  ? C . × oliveri  ? C . × taitensis  ? C . × virgata  ? C . x webberi

Citrus L. , Sp. Pl. 2: 782. (1753)

• Type species: Citrus medica L. (1753)

• Homotypic
  • Citreum Tournef. ex Mill. , Gard. Dict., abr. ed. 4: 383. (1754), nom. superfl.
  • Limon Mill. , Gard. Dict. Abr. ed. 4. (1754)
• Heterotypic
  • Aurantium Mill. , Gard. Dict. Abr. ed. 4 (1754).
    • Type species : non design.
  • Citrophorum Neck.
  • × Citrofortunella J.W.Ingram & H.E.Moore , Baileya 19(4): 169 (1975).
    • Type species : non design.
  • × Citroncirus J.W.Ingram & H.E.Moore , Baileya 19(4): 171 (1975).
    • Type species : non design.
  • Eremocitrus Swingle , J. Agric. Res. 2: 86 (1914).
    • Citrus subg. Eremocitrus ( Swingle ) Burkill , Gard. Bull. Straits Settlem. 5: 218 (1931).
      • Type species: E. glauca   ( Lindl. ) Swingle
  • Feroniella Swingle
  • Fortunella Swingle , J. Wash. Acad. Sci. 5: 167 (1915).
    • Citrus subg. Fortunella ( Swingle ) Burkill , Gard. Bull. Straits Settlem. 5: 218 (1931).
      • Type species: F. margarita   ( Lour. ) Swingle
  • Microcitrus Swingle , J. Wash. Acad. Sci. 5: 570 (1915).
    • Type species: M. australasica   ( F.Muell. ) Swingle
  • Oxanthera Montrouz.
  • Papeda Hassk.
  • Pleurocitrus Tanaka
  • Poncirus Raf. , Sylva Tell. 143 (1838).
    • Citrus subg. Microcitrus ( Swingle ) Burkill , Gard. Bull. Straits Settlem. 5: 219 (1931).
    • Type species: P. trifoliata   ( L. ) Raf.
  • Pseudaegle Miq., Ann. Mus. Bot. Lugduno-Batavi 2: 83 (1865).
    • Type species: P. sepiaria   ( DC. ) Miq.
  • Sarcodactilis C.F.Gaertn. , Suppl. Carp. 39, t. 185 (1805).
    • Type species: S. helicteroides   C.F.Gaertn.

• Linnaeus, C. 1753. Species Plantarum . Tomus II: 782 . Reference page . 

• Carbonell-Caballero, J. , Alonso, R. , Ibanez, V. , Terol, J. , Talon, M. & Dopazo, J. 2015. A phylogenetic analysis of 34 chloroplast genomes elucidates the relationships between wild and domestic species within the genus Citrus . Molecular Biology and Evolution 32(8): 2015-2035. DOI : 10.1093/molbev/msv082 Reference page . 
• Fuller, D., Castillo, C., Kingwell-Banham, E., Qin, L. & Weisskopf, A. 2017. Charred pomelo peel, historical linguistics and other tree crops: approaches to framing the historical context of early Citrus cultivation in East, South and Southeast Asia. Publications du Centre Jean Berard. Link
• Mabberley, D.J. 1998. Australian Citreae with notes on other Aurantioideae (Rutaceae). Telopea 7(4): 333-344. BHL PDF Reference page . 
• Mabberley, D.J. 2004. Citrus (Rutaceae): a review of recent advances in etymology, systematics and medical applications. Blumea-Biodiversity, Evolution and Biogeography of Plants 49(2-3): 481-498. DOI : 10.3767/000651904X484432 Reference page . 
• Mabberley, D.J. 2010. The species of Citrus (Rutaceae) with pinnate leaves. Blumea-Biodiversity, Evolution and Biogeography of Plants 55(1): 73-74. DOI : 10.3767/000651910X499222 Reference page . 
• Mabberley, D.J. 2022. A classification for edible citrus: an update, with a note on Murraya (Rutaceae). Telopea 25: 271-284. DOI : 10.7751/telopea15954 PDF Reference page . 
• Penjor, T. , Yamamoto, M. , Uehara, M. , Ide, M. , Matsumoto, N. , Matsumoto, R. & Nagano, Y. 2013. Phylogenetic relationships of Citrus and its relatives based on matK gene sequences. PLoS ONE 8(4): p.e62574. DOI : 10.1371/journal.pone.0062574 Reference page . 

• Govaerts, R. et al. 2024. Citrus in Kew Science Plants of the World Online . The Board of Trustees of the Royal Botanic Gardens, Kew . Published online. Accessed: 2024 Jan. 17. Reference page . 
• Hassler, M. 2024. Citrus . World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y. , Abucay, L. , Orrell, T. , Nicolson, D. , Bailly, N. , Kirk, P. , Bourgoin, T. , DeWalt, R.E. , Decock, W. , De Wever, A. , Nieukerken, E. van , Zarucchi, J. & Penev, L. , eds. 2024. Species 2000 & ITIS Catalogue of Life . Published online. Accessed: 2024 Jan. 17. Reference page . 
• International Plant Names Index . 2024. Citrus . Published online. Accessed: Jan. 17 2024.
• Tropicos.org 2024. Citrus . Missouri Botanical Garden. Published online. Accessed: 17 Jan. 2024.

For more multimedia, look at Citrus on Wikimedia Commons .