Parmotrema subrigidum
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Parmeliaceae
- genus: Parmotrema
- species: Parmotrema subrigidum
Dauphin Island- Fairhope
- Orange Beach
Alabama- Altamonte Springs
- Apalachicola
- Clewiston
- Crawfordville
- Daytona Beach
- Fern Park
- Fernandina Beach
- Gulf Breeze
- Harlem
- Jacksonville
- Jacksonville Beach
- Jupiter
- Lower Grand Lagoon
- Neptune Beach
- Ormond-by-the-Sea
- Palm Aire
- Palm Beach
- Ponte Vedra Beach
- Saint Augustine Shores
- Seaside
- Tallahassee
- Twin Lakes
- West Palm Beach
Florida- Darien
- Isle of Hope
- Skidaway Island
Georgia- West Cape May
New Jersey- Awendaw
- Murrells Inlet
- Myrtle Beach
- North Myrtle Beach
- Whitmire
South Carolina
United States