Standard Sour Orange

Synonyms

None

Cultivar or taxon

Citrus x aurantium L., pro sp. [Sour Orange Group] (sensu Mabberley 2004, Bayer et al. 2009); Citrus aurantium L. (sensu Swingle and Reece 1967; sec. Hodgson 1967; sensu Tanaka sec. Cottin 2002)

Description

Crown compact or dense, not weeping. First-year twig surface glabrous; second- or third-year twig surface striate; thorns absent or not persistent; prickles absent or not persistent. Petiole glabrous, length medium; wings narrow, adjoining the blade. Leaflets one, margin entire (by misinterpretation) or bluntly toothed, shade leaflet blades weakly conduplicate, sun leaflet blades weakly conduplicate. Scent of crushed leaflets spicy or peppery. Fruit broader than long; rind yellow (7-10), yellow-orange (11), orange (12), or red-orange (13); rind texture medium rough (6-7); firmness leathery; navel absent; flesh orange; taste sour.

References

Bayer, R.J., D.J. Mabberley, C. Morton, C.H. Miller, I.K. Sharma, B.E. Pfeil, S. Rich, R. Hitchcock, and S. Sykes. 2009. A molecular phylogeny of the orange subfamily (Rutaceae: Aurantioideae) using nine cpDNA sequences. American Journal of Botany 96: 668–685.

Cottin, R. 2002. Citrus of the World: A citrus directory. Version 2.0. France: SRA INRA-CIRAD.

Hodgson, R.W. 1967. Horticultural varieties of Citrus. In: Reuther, W., H.J. Webber, and L.D. Batchelor (eds.). The Citrus industry, rev. University of California Press. http://lib.ucr.edu/agnic/webber/Vol1/Chapter4.html.

Mabberley, D.J. 2004. Citrus (Rutaceae): A review of recent advances in etymology, systematics and medical applications. Blumea 49: 481–498.

Swingle, W.T. and P.C. Reece. 1967. The botany of Citrus and its wild relatives. In: Reuther, W., H.J. Webber, and L.D. Batchelor (eds.). The Citrus industry. Ed. 2. Vol. I. University of California, Riverside. http://lib.ucr.edu/agnic/webber/Vol1/Chapter3.html.

Resources

Search for this cultivar in NCBI Entrez or NCBI Expressed Sequence Tags

Additional information on this cultivar at University of California: Riverside Citrus Variety Collection

           Habit (Riverside, CA)

Habit (Riverside, CA)

             Bark (Riverside, CA)

Bark (Riverside, CA)

           First year twig (Riverside, CA)

First year twig (Riverside, CA)

             Petiole (Riverside, CA)

Petiole (Riverside, CA)

             Unifoliolate leaf (Riverside, CA)

Unifoliolate leaf (Riverside, CA)

             Margin (Riverside, CA)

Margin (Riverside, CA)

             Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

             Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

           Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit cross-section (Riverside, CA)

Fruit cross-section (Riverside, CA)