Smooth Knotweed
Persicaria glabra (Willdenow) M. Gomez
Smooth Knotweed: https://marylandbiodiversity.com/species/3545
Synonyms
Persicaria densiflora  Persicaria portoricensis  Polygonum densiflorum  Polygonum glabrum  Polygonum portoricense 
Tags
None
Flowers