oriental lady’s-thumb smartweed

Persicaria longiseta

Polygonaceae

Flowers mid-September

Slideshow and species account to come.

For more information:

https://gobotany.nativeplanttrust.org/species/persicaria/longiseta/

https://en.wikipedia.org/wiki/Persicaria_longiseta

https://www.minnesotawildflowers.info/flower/oriental-ladys-thumb