Citrus trees migrated from the Himalayas to the rest of the world after sudden changes in the climate 6 to 8 million years ago, according to new research. As citrus spread, it changed,.

07/02/2013. Citrus fruits are packed with important nutrients and minerals. And that’s not the only great thing about the fruits. They’re also proving to be experts at adapting to climate.

Scientific name: Citrus spp . Pronunciation: SIH-trus species Common name (s): Citrus Family: Rutaceae USDA hardiness zones: 9A through 11 (Fig. 2) Origin: not native to North America Invasive potential: has been evaluated using the UF/IFAS Assessment of the Status of Non-Native Plants in Florida's Natural Areas (UF/IFAS 2019).