Crown compact or dense, not weeping. First-year twig surface glabrous or pubescent; second- or third-year twig pubescence striate; thorns absent or not persistent or straight; prickles absent or not persistent. Petiole glabrous or pubescent, length short, medium, long or very long; wings absent, if present, narrow, medium or wide, adjoining the blade or tucking beneath blade. Leaflets one, margins entire, crenate/crenulate or bluntly toothed, shade leaflet blades flat or weakly conduplicate, sun leaflet blades flat, weakly or strongly conduplicate. Scent of crushed leaflets sweetly orange-like, spicy/peppery, freshly lemon-like, somewhat to strongly malodorous, or not scented. Fruit broader than long, as broad as long, or longer than broad; rind green-yellow (6), yellow (7-10), yellow-orange (11), or orange (12); rind texture slightly rough (4-5) or medium rough (6-7); firmness leathery; navel absent; flesh orange, red/purplish-tinged, or yellow; taste grapefruit-like; acidic-sweet or sour.
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.
First year twig of Citrus tamurana (Hyuganatsu, Riverside, CA) |
First year twig of Citrus paradisi (Oroblanco, Riverside, CA) |
Petiole of Citrus paradisi (Oroblanco, Riverside, CA) |
Petiole of Citrus paradisi (Oroblanco, Riverside, CA) |
Fruit of Citrus paradisi x Citrus sinensis (Chironja, Riverside, CA) |
Fruit cross-section of Citrus paradisi x Citrus sinensis (Chironja, Riverside, CA) |