American Frog's-bit
Limnobium spongia (Bosc) L.C. Richard ex Steudel
American Frog's-bit: https://marylandbiodiversity.com/species/1767
Synonyms
American Frogbit  Frogbit 
Total Records
by Month
For Jan - Dec from 1910 - 2023

Source: Maryland Biodiversity Project database

Total Records
by Year
191019151920192519301935194019451950195519601965197019751980198519901995200020052010201520202025012345Totals

Source: Maryland Biodiversity Project database