Central and eastern United States, Mexico and Central America. Also reported for the West Indies and northern South America (e.g. Davidse et al. 1995), but perhaps not present there.
Map of select IRC data for peninsular Florida
IRC SOUTH FLORIDA Status:
SOUTH FLORIDA Occurrence:
SOUTH FLORIDA Native Status:
SOUTH FLORIDA Cultivated Status:
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website for more information and images. Reported by John Kunkel Small in 1918 for Royal Palm Hammock
Polypodium polypodioides var. michauxiana; P. polypodioides, misapplied.