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Floristic Inventory of the Florida Keys Database Online

Citrus x aurantium L.
Sour orange

Citrus x aurantium
Copyright by: Shirley Denton

Family: Rutaceae

Group: Dicot

Substrate: Terrestrial

Habit: Tree

Perennation: Perennial

Native Range: Native to the Old World (Tropical Asia); widely cultivated and naturalized elsewhere.

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Not Native, Naturalized

South Florida History and Distribution: IRC considers this an emerging invasive in South Florida.

SOUTH FLORIDA Cultivated Status: Cultivated

Synonyms: C. vulgaris.

FLORIDA KEYS Occurrence: Assumed to be Present

FLORIDA KEYS Native Status: Not Native, Cultivated Only

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: Reported in 1913 by John Kunkel Small for hammocks, but most likely persisting from cultivation.  This was a common citrus root stock used in the early 20th century.

Other data on Citrus x aurantium available from :

Atlas of Florida Vascular Plants

Citrus x aurantium has been reported from the following conservation area in the FLORIDA KEYS :
Occurrence Native Status
Biscayne National Park, Florida Keys Section Presumed Extirpated Not Native, Cultivated Only






All Images:

Citrus x aurantium
Copyright by: Shirley Denton