Cirsium megacephalum (A. Gray) Cockerell
Cirsium megacephalum (A. Gray) Cockerell is a synonym sensu FNA Ed. Comm., 2006a of:
Cirsium undulatum (Nuttall) Sprengel, an accepted species name sensu FNA Ed. Comm., 2006a.
Cirsium megacephalum (A. Gray) Cockerell is a synonym sensu FNA Ed. Comm., 2006a of:
Cirsium undulatum (Nuttall) Sprengel, an accepted species name sensu FNA Ed. Comm., 2006a.