Poterium sanguisorba var. polygamum   garden burnet
           (Alt: Sanguisorba minor )
Rosaceae non-native                      herbaceous           

UW Burke Herbarium Link: Poterium sanguisorba var. polygamum
USDA Plants Link: Poterium sanguisorba var. polygamum   (SAMI3)

Walks that mention Poterium sanguisorba var. polygamum