Polygonum douglasii subsp. spergulariiforme (Meisner ex Small) J.C. Hickman

Polygonum douglasii subsp. spergulariiforme (Meisner ex Small) J.C. Hickman is a synonym sensu FNA Ed. Comm., 2005 of:

Polygonum spergulariiforme Meisner ex Small, an accepted species name sensu FNA Ed. Comm., 2005.