Helianthus subrhomboideus
Helianthus subrhomboideus Rydberg is a synonym (FNA Ed. Comm., 2006c) of:
Helianthus pauciflorus subsp. subrhomboideus (Rydberg) O. Spring & E.E. Schilling , an accepted subspecies name sensu FNA Ed. Comm., 2006c.
Helianthus subrhomboideus Rydberg is a synonym (FNA Ed. Comm., 2006c) of:
Helianthus pauciflorus subsp. subrhomboideus (Rydberg) O. Spring & E.E. Schilling , an accepted subspecies name sensu FNA Ed. Comm., 2006c.