Polygonum kelloggii var. confertiflorum (Nuttall ex Piper) Dorn

Polygonum kelloggii var. confertiflorum (Nuttall ex Piper) Dorn is a synonym sensu FNA Ed. Comm., 2005 of:

Polygonum polygaloides subsp. confertiflorum (Nuttall ex Piper) J.C. Hickman, an accepted subspecies name sensu FNA Ed. Comm., 2005.