Sanguisorba annua (Nuttall ex Hooker) Torrey & A. Gray

Sanguisorba annua (Nuttall ex Hooker) Torrey & A. Gray is a synonym sensu FNA Ed. Comm., 2014 of:

Poteridium annuum (Nuttall ex Hooker) Spach, an accepted species name sensu FNA Ed. Comm., 2014.