Apparently endemic to South Florida.
Map of select IRC data for peninsular Florida
IRC SOUTH FLORIDA Status:
SOUTH FLORIDA Occurrence:
SOUTH FLORIDA Native Status:
SOUTH FLORIDA Cultivated Status:
This hybrid with two weedy but native parents (P. glaucescens, P. prostrata) is only known from disturbed sites, particularly scraped limestone. It may be a recent hybrid produced by human activity but we treat as native and rare.
For an illustration, visit the Encylopedia of Life