Columbian Watermeal
Wolffia columbiana Karsten
Columbian Watermeal: https://marylandbiodiversity.com/species/1832
Synonyms
Columbian Waterwheel 
Tags
Total Records
by Month
For Jan - Dec from 1909 - 2018
JanFebMarAprMayJunJulAugSepOctNovDec012Totals

Source: Maryland Biodiversity Project database

Total Records
by Year
1910191519201925193019351940194519501955196019651970197519801985199019952000200520102015202020250123Totals

Source: Maryland Biodiversity Project database