Seaside Knotweed
Polygonum glaucum Nuttall
Seaside Knotweed: https://marylandbiodiversity.com/species/3546
Synonyms
Polygonum maritimum 
Total Records
by Month
For Jan - Dec from 1904 - 2008
JanFebMarAprMayJunJulAugSepOctNovDec0123Totals

Source: Maryland Biodiversity Project database

Total Records
by Year
19051910191519201925193019351940194519501955196019651970197519801985199019952000200520102015202020250123Totals

Source: Maryland Biodiversity Project database