Hydatica newcombei Small
Saxifraga nutkama Howell
Hydatica vreelandii (Small) Small
Hexaphoma ferruginea Raf.
Saxifraga ferruginea var. vreelandii (Small) Engl. & Irmsch.
Spatularia vreelandii Small
Saxifraga leucanthemifolia var. integrifolia Engl.
Saxifraga ferruginea Graham
Saxifraga newcombei Small
Hydatica ferruginea Small
Saxifraga ferruginea var. grandiflora A.M.Johnson
Spatularia ferruginea Small
Saxifraga ferruginea var. foliacea A.M.Johnson
Saxifraga vreelandii (Small) Fedde
Saxifraga ferruginea var. nivea A.M.Johnson
Saxifraga ferruginea var. macounii Engl. & Irmsch.
Saxifraga ferruginea var. typica Engl. & Irmsch.
Spatularia newcombei (Small) Small
Saxifraga ferruginea var. stellariformis A.M.Johnson
Saxifraga ferruginea var. newcombei (Small) Hultén
Saxifraga ferruginea f. vreelandii (Small) H.St.John
Saxifraga bongardii C.Presl ex Engl.
Saxifraga ferruginea var. diffusa A.M.Johnson
Saxifraga ferruginea var. cuneata A.M.Johnson