Rhododendron arborescens (Pursh) Torrey [ Azalea arborescens Pursh]
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Rhododendron arborescens (Pursh) Torrey
[Azalea arborescens Pursh] [Ericaceae]
M.V. Walcott, N. Amer. Wild Fl., vol. 1 : t. 55 (1925-1927)