Sitrus (Basa Inggris: Citrus) iku jeneng umum tumrap tetuwuhan ngembang saka kulawarga rutaceae. Citrus dipercaya asal saka Asia Kidul-wétan yakuwi ing tlatah sing diwatesi India, Myanmar (Burma) lan provinsi Yunnan ing China. Wit woh-wohan citrus wis dibudidaya ing ngendi-endi wiwit jaman kuna; conto sing paling paling dikenal yakuwi jeruk utawa basa Inggris: orange, lemon, grapefruit lan limau (basa Inggris: lime). 
Jeneng sitrus asal saka basa Latin, tegesé tuwuhan sing saiki dikenal minangka Citron (C. medica). Tembung iki asal saka tembung basa Yunani kuna kεδρος (kedros).

Jinis lan kultivar 
Citrus maxima-based
 Amanatsu, natsumikan – Citrus × natsudaidai (C. maxima × unknown)
 Cam sành (C. reticulata × C. × sinensis)
 Grapefruit – Citrus × paradisi (C. maxima × C. × sinensis)
 Imperial Lemon (C. × limon × C. × paradisi)
 Kinnow (C. × nobilis × C. × deliciosa)
 Kiyomi (C. sinensis × C. × unshiu)
 Minneola Tangelo (C. reticulata × C. × paradisi)
 Orangelo, Chironja (C. × paradisi ×  C. × sinensis)
 Oroblanco, Sweetie (C. maxima × C. × paradisi)
 Sweet Orange – Citrus × sinensis (probably C. maxima × C. × reticulata)
 Tangelo – Citrus × tangelo (C. reticulata × C. maxima or C. × paradisi)
 Tangor – Citrus × nobilis (C. reticulata × C. × sinensis)
 Ugli (C. reticulata × C. maxima or C. × paradisi)

Citrus medica-based
 Buddha's Hand – Citrus medica var. sarcodactylus
 Citron varieties with sour pulp: Diamante citron, Florentine citron, Greek citron and Balady citron

 Citron varieties with sweet pulp: Corsican citron and Moroccan citron.
 Yemenite citron – a pulpless citron.
 Fernandina – Citrus × limonimedica (probably C. medica × C. × limon)
 Ponderosa Lemon (probably C. medica × C. × limon)

Citrus reticulata-based
 Bergamot Orange – Citrus × aurantium ssp. bergamia or Citrus × bergamia
 Bitter Orange, Seville Orange – Citrus × aurantium
 Blood Orange – Citrus × sinensis cultivars
 Calamondin, Calamansi – Citrus reticulata × Citrus japonica
 Cam sành (C. reticulata × C. × sinensis)
 Chinotto – Citrus × aurantium var. myrtifolia or Citrus × myrtifolia
 ChungGyun – Citrus reticulata cultivar
 Clementine – Citrus × clementina
 Cleopatra Mandarin – Citrus × reshni
 Dekopon – Citrus reticulata cv. 'Siranui' (ChungGyun × Ponkan)
 Daidai – Citrus × aurantium var. daidai or Citrus × daidai
 Grapefruit – Citrus × paradisi (C. maxima × C. × sinensis)
 Hermandina – Citrus reticulata cv. 'Hermandina'
 Imperial Lemon (C. × limon × C. × paradisi)
 Kinnow, Wilking (C. × nobilis × C. × deliciosa)
 Kiyomi (C. sinensis × C. × unshiu)
 Mediterranean Mandarin, Willow Leaf – Citrus × deliciosa
 Meyer Lemon, Valley Lemon – Citrus × meyeri (C. × limon × C. × paradisi or C. × sinensis)
 Michal Mandarin – Citrus reticulata cv. 'Michal'
 Mikan, Satsuma – Citrus × unshiu
 Minneola Tangelo (C. reticulata × C. × paradisi)
 Nova Mandarin, Clemenvilla
 Orangelo, Chironja (C. × paradisi × C. × sinensis)
 Oroblanco, Sweetie (C. maxima × C. × paradisi)
 Ponkan – Citrus reticulata cv. 'Ponkan'
 Rangpur, Lemanderin, Mandarin Lime – Citrus × limonia (C. reticulata × C. × limon)
 Sweet Orange – Citrus × sinensis (probably C. maxima × C. × reticulata)
 Tangelo – Citrus × tangelo (C. reticulata × C. maxima or C. × paradisi)
 Tangerine – Citrus × tangerina
 Tangor – Citrus × nobilis (C. reticulata × C. × sinensis)
 Ugli (C. reticulata × C. maxima or C. × paradisi)
 Yuzu – Citrus × junos (C. reticulata × C. × ichangensis)

Unresolved
 Alemow, Colo – Citrus × macrophylla
 Djeruk limau – Citrus × amblycarpa
 Gajanimma, Carabao Lime – Citrus × pennivesiculata
 Ichang Lemon, Ichang Papeda – Citrus × ichangensis
 Imperial Lemon (C. × limon × C. × paradisi)
 Iyokan, anadomikan – Citrus × iyo
 Kabosu – Citrus × sphaerocarpa
 Kaffir Lime, makrut – Citrus × hystrix
 Lemon – Citrus × limon
 Limetta, Sweet Lemon, Sweet Lime, mosambi – Citrus × limetta
 Palestine Sweet Lime – Citrus × limettioides Tanaka
 Persian lime, Tahiti Lime – Citrus × latifolia
 Pompia ("Citrus mostruosa", a nomen nudum)
 Rough Lemon – Citrus × jambhiri Lush.
 Sakurajima komikan orange
 Shekwasha, Hirami Lemon, Taiwan Tangerine – Citrus × depressa
 Sudachi – Citrus × sudachi
 Sunki, Suenkat – Citrus × sunki
 Tachibana Orange – Citrus × tachibana (Mak.) Tanaka
 Volkamer Lemon – Citrus × volkameriana

Uga delengen 
Jeruk

Cathetan sikil

Rujukan 
  (1961): Acclimatization of citrus fruits in the Mediterranean region. Agricultural History 35(1): 35-46.
  (2003): What is Citrus? Taxonomic implications from a study of cp-DNA evolution in the tribe Citreae (Rutaceae subfamily Aurantioideae). Organisms Diversity & Evolution 3(1): 55-62.  (HTML abstract)
  (2000): Citrus phylogeny and genetic origin of important species as investigated by molecular markers. Theoretical and Applied Genetics 100(8): 1155-1166.  (HTML abstract)
33 ^ Carr, Jackie (April 22, 2010). "Five Ways to Prevent Kidney Stones". UC San Diego. http://health.ucsd.edu/news/2010/4-22-kidney-stones.htm . Retrieved 2010-12-03

Wacan 

  (2002): Origin and history. In:  (2002): Citrus. Taylor & Francis. ISBN 0-415-28491-0
  (1985): Chapter 64. Rutaceae. In: Handbook of Seed Technology for Genebanks (Volume II: Compendium of Specific Germination Information and Test Recommendations). International Board for Plant Genetic Resources, Rome, Italy. HTML fulltext
  (1991): FAO/IBPGR Technical Guidelines for the Safe Movement of Citrus Germplasm. FAO, IOCV, IPGRI. PDF fulltext
  (1999): Descriptors for Citrus (Citrus spp.). PDF fulltext
  (2005): Purdue University Tropical Horticulture Lecture 32: Citrus 
  (1995): RFLP analysis of cytoplasmic and nuclear genomes used for citrus taxonomy. In: Mandarines-développements scientifiques récents, résumés oraux et posters: 12-13. CIRAD-FLHOR, San Nicolao, France. HTML abstract 
  (2000): Citrus, Proceedings of a regional workshop on disease management of banana and citrus through the use of disease-free planting materials held in Davao City, Philippines, 14–16 October 1998. INIBAP. PDF fulltext
  (2005): Orange Empire: California and the Fruits of Eden.
  (1967–1989): The Citrus Industry. HTML fulltext of Vol. 1, 2, & Vol. 5, Chapter 5
1 ^ Carr, Jackie (April 22, 2010). "Five Ways to Prevent Kidney Stones". UC San Diego. http://health.ucsd.edu/news/2010/4-22-kidney-stones.htm . Retrieved 2010-12-03.
1 ^ Carr, Jackie (April 22, 2010). "Five Ways to Prevent Kidney Stones". UC San Diego. http://health.ucsd.edu/news/2010/4-22-kidney-stones.htm . Retrieved 2010-12-03.

Pranala njaba 

 Effects of pollination on Citrus plants  Pollination of Citrus by Honey Bees
 Citrus Research and Education Center  of IFAS (largest citrus research center in world)
 Citrus Variety Collection by the University of California 
 Citrus (Mark Rieger, Professor of Horticulture, University of Georgia)
 Sorting Citrus names
 Fundecitrus - Fund for Citrus Plant Protection  is an organization of citrus Brazilian producers and processors.
 Citrus - taxonomy, fruit anatomy at GeoChemBio 
 Home Citrus Growers

Tetuwuhan
Rutaceae