Halianthus peploides var. diffusus (Hornemann) Lange

Halianthus peploides var. diffusus (Hornemann) Lange is a synonym sensu FNA Ed. Comm., 2005 of:

Honckenya peploides subsp. diffusa (Hornemann) Hultén, an accepted subspecies name sensu FNA Ed. Comm., 2005.