Aucuparia subvestita(Greene) Nieuwl. Pyrus americana var. decoraSarg. Pyrus decora(Sarg.) Hyland Pyrus decora var. groenlandica(C.K.Schneid.) Fernald Pyrus dumosa(Greene) Fernald Pyrus groenlandica(C.K.Schneid.) K.R.Robertson Pyrus sambucifoliaS.Watson & J.M.Coult. Pyrus sitchensisB.L.Rob. & Fernald Pyrus subvestita(Greene) Farw. Sorbus americanaPursh Sorbus americana var. decora(Sarg.) Sarg. Sorbus americana var. groenlandicaC.K.Schneid. Sorbus americana var. sitchensis(M.Roem.) Sudw. Sorbus decora var. decora Sorbus decora var. groenlandica(C.K.Schneid.) G.N.Jones Sorbus dumosaHouse Sorbus groenlandica(C.K.Schneid.) Á.Löve & D.Löve Sorbus sambucifoliaDippel Sorbus scopulinaHough Sorbus subvestitaGreene Sorbus subvestitaRosend. & Butters