South Florida, the West Indies, Central America and northern South America.
Map of select IRC data for peninsular Florida
NatureServe Global Status:
State of Florida Status:
Florida Natural Areas Inventory State Status:
IRC SOUTH FLORIDA Status:
SOUTH FLORIDA Occurrence:
SOUTH FLORIDA Native Status:
SOUTH FLORIDA Cultivated Status:
For more images, click on the Atlas of Florida Vascular Plants link below.
Dismal Key, where poponax is present, is part of both the Cape Romano - Ten Thousand Islands Aquatic Preserve and Ten Thousand Islands National Wildlife Refuge. Cape Romano - Ten Thousand Islands Aquatic Preserve is, in turn, part of the Rookery Bay National Estuarine Research Reserve. Poponax is acually known from only Dismal Key and three islands in Everglades National Park.
See also, IRC’s report Vascular plant species of management concern in Everglades National Park
(Gann 2015), page 31.