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Floristic Inventory of the Florida Keys Database Online

Euphorbia ogdenii K.A. Bradley & Sadle
Ogden's sandmat

Euphorbia ogdenii
Copyright by: Keith A. Bradley

Family: Euphorbiaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Endemic to South Florida in the Monroe County Keys.

IRC SOUTH FLORIDA Status: Critically Imperiled

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: This species was previously placed into synonymy under E. porteriana. The species concept was revised and a new name published by Keith Bradley and Jimi Sadle in 2021 (in Weakley et al. 2021). See also Florida Natural Areas Inventory's Field Guide to the Rare Plants of Florida page (Chafin 2000) for a discussion of E. porteriana in the broad sense.

Synonyms: Chamaesyce scoparia.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Native

IRC FLORIDA KEYS Status: Critically Imperiled

Map of select IRC data for the Florida Keys

Other data on Euphorbia ogdenii available from :


Euphorbia ogdenii has been reported from the following 11 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Biscayne National Park, Florida Keys Section Present Native
Blue Heron Hammock, Florida Keys Wildlife and Environmental Area Present Native
Curry Hammock State Park Present Native
Dagny Johnson Key Largo Hammocks Botanical State Park Present Native
Lignumvitae Key Botanical State Park Reported
Little Hamaca Park Present Native
National Key Deer Refuge Present Native
Snake Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Torchwood Hammock Preserve Present Native
Wahoo Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Windley Key Fossil Reef Geological State Park Assumed to be Present Native






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Euphorbia ogdenii
Copyright by: Keith A. Bradley