Polemonium boreale subsp. macranthum (Chamisso) Hultén

Polemonium boreale subsp. macranthum (Chamisso) Hultén is a synonym sensu IPNI of:

Polemonium villosissimum (Hultén) D.F. Murray & Elven, an accepted species name sensu FNA Ed. Comm., in prep. h.