Clematis columbiana (Nuttall) Torrey & A. Gray
Clematis columbiana (Nuttall) Torrey & A. Gray is a synonym of:
Clematis occidentalis var. grosseserrata (Rydberg) J.S. Pringle, an accepted variety name sensu FNA Ed. Comm., 1997.
Clematis columbiana (Nuttall) Torrey & A. Gray is a synonym of:
Clematis occidentalis var. grosseserrata (Rydberg) J.S. Pringle, an accepted variety name sensu FNA Ed. Comm., 1997.