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Euphorbia hammeri K.A. Bradley & Sadle
Hammer's sandmat

Euphorbia hammeri
Copyright by: Keith A. Bradley

Family: Euphorbiaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Endemic to South Florida in Miami-Dade County and the Monroe County mainland.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Critically Imperiled

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

South Florida History and Distribution: Known only from Everglades National Park and Big Cypress National Preserve.

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 species described 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.

Other data on Euphorbia hammeri available from :

Euphorbia hammeri has been found in the following 2 conservation areas :
Occurrence Native Status
Big Cypress National Preserve Present Native
Everglades National Park Present Native

Euphorbia hammeri has been found in the following 2 habitats :
Marl Prairie
Pine Rockland

All Images:

Euphorbia hammeri
Copyright by: Keith A. Bradley