Saxifraga nelsoniana var. porsildiana (Calder & Savile) H. Ohba

Saxifraga nelsoniana var. porsildiana (Calder & Savile) H. Ohba is a synonym sensu FNA Ed. Comm., 2009 of:

Micranthes nelsoniana var. porsildiana (Calder & Savile) Gornall & H. Ohba, an accepted variety name sensu FNA Ed. Comm., 2009.