This tool is part of the Citrus Resource

Citrus ID


Smooth Flat Seville




Appleby, Mildura, Smooth Seville (sec. NPGS/GRIN 2011)

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)



Hodgson (1967) noted under the synonymous Smooth Seville: "This is an old Australian fruit that is thought to have originated as a seedling of unknown parentage and has generally been regarded as a sweet orange and grapefruit hybrid. Its age and numerous resemblances to Poorman, however, suggest that it may be of similar origin and possibly a sister seedling."



Crown compact or dense, not weeping. First-year twig surface pubescent; second- or third-year twig surface striate; thorns absent or not persistent; prickles absent or not persistent. Petiole pubescent, length medium; wings medium, adjoining the blade. Leaflets one, margin crenate/crenulate or bluntly toothed, shade leaflet blades weakly conduplicate, sun leaflet blades weakly conduplicate. Scent of crushed leaflets spicy or peppery. Fruit broader than long, as broad as long, or longer than broad; rind yellow (7-10), yellow-orange (11), orange (12), or red-orange (13); rind texture smooth (1-3), slightly rough (4-5), or medium rough (6-7); firmness leathery; navel absent; flesh orange or yellow; taste sour.

Hodgson (1967) provided the following additional notes on the cultivar under the synonymous Smooth Seville:

"Fruit similar to Poorman in size, form, and flavor, but rind surface very smooth; both rind and flesh color reddish-orange; seeds exhibit low polyembryony (usually one, occasionally two embryos).

Tree and foliage similar to Poorman but tree commonly more vigorous and larger. Younger branches also exhibit dark bark streaks characteristic of Poorman. Distinctive rough bark condition on trunk and main branches which affects some Poorman selections not observed so far on Smooth Seville trees."



Hodgson (1967) additionally noted under the synonymous Smooth Seville: "Like Poorman, Smooth Seville has a lower heat requirement for maturity than the grapefruit and hence ripens earlier and serves as a satisfactory substitute."



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.

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.



Search for this cultivar in NCBI Entrez

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


Citrus ID Edition 2
October, 2011