Sorbus sitchensis var. grayi

Sorbus sitchensis var. grayi (Wenzig) C.L. Hitchc.  

Family: Rosaceae

[Pyrus sambucifolia var. pumila (Raf.) Sarg., moreSorbus pumilus Raf., Sorbus sambucifolia var. grayi Wenz., Sorbus sambucifolia var. pumila (Raf.) Koehne]