Helianthella uniflora var. douglasii (Torrey & A. Gray) W.A. Weber

Helianthella uniflora var. douglasii (Torrey & A. Gray) W.A. Weber is a synonym sensu FNA Ed. Comm., 2006c of:

Helianthella uniflora subsp. douglasii (Torrey & A. Gray) W.A. Weber, an accepted subspecies name sensu FNA Ed. Comm., 2006c.