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Floristic Inventory of the Florida Keys Database Online

Trianthema portulacastrum L.
Desert horsepurslane

Trianthema portulacastrum
Copyright by: Forest & Kim Starr

Family: Aizoaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Annual

Native Range: The United States, the West Indies, Mexico, Central America, South America and the Old World tropics.

IRC SOUTH FLORIDA Status: Imperiled

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Native

IRC FLORIDA KEYS Status: Imperiled

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: Reported in 1913 by John Kunkel Small for hammocks and sandy shores from the upper Keys to the lower Keys.  We consider this native throughout the Florida Keys, but perhaps extirpated in the lower sandy Keys.

Other data on Trianthema portulacastrum available from :


Trianthema portulacastrum has been reported from the following 8 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Bahia Honda State Park Present Native
Biscayne National Park, Florida Keys Section Present Native
Blue Heron Hammock, Florida Keys Wildlife and Environmental Area Present Native
Dagny Johnson Key Largo Hammocks Botanical State Park Present Native
Dove Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Dry Tortugas National Park Presumed Extirpated Presumed Extirpated
Long Key State Park Present Native
National Key Deer Refuge Possibly Extirpated Possibly Extirpated




Trianthema portulacastrum has been reported for the following 3 habitats in THE FLORIDA KEYS :
Disturbed Upland
Disturbed Wetland
Tidal Marsh


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Trianthema portulacastrum
Copyright by: Forest & Kim Starr

Trianthema portulacastrum
Copyright by: Forest & Kim Starr