Plantae | Sapindales | Rutaceae | Citrus | Citrus aurantium
Bouma TJ, Yanai RD, Elkin AD, Hartmond U, Flores-Alva DE, Eissenstat DM. 2001. Estimating age-dependent costs and benefits of roots with contrasting life span: comparing apples and oranges. New Phytologist 150: 685-695.