Thaspium trifoliatum var. apterum A. Gray
Thaspium trifoliatum var. apterum A. Gray is a synonym sensu FNA Ed. Comm., in prep. f of:
Zizia aptera (A. Gray) Fernald var. aptera, an accepted variety name sensu FNA Ed. Comm., in prep. f.
Thaspium trifoliatum var. apterum A. Gray is a synonym sensu FNA Ed. Comm., in prep. f of:
Zizia aptera (A. Gray) Fernald var. aptera, an accepted variety name sensu FNA Ed. Comm., in prep. f.