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canescens, Rhododendron catawbiense, Rhododendron columbianum, Rhododendron cumberlandense, Rhododendron eastmanii, Rhododendron flammeum, Rhododendron groenlandicum

subfamilyEricaceae subfam. Ericoideae genusRhododendron speciesRhododendron cumberlandense E. L. Braun Rhodora 43: 33. 1941 ,. Walter S. Judd, Kathleen A. Kron

with the diploid R. cumberlandense, is an allotetraploid, and may have been derived from a hybrid between an ancestor of R. cumberlandense and one of R. prinophyllum

Rhododendron prunifolium is most closely related to R. flammeum, R. cumberlandense, and R. calendulaceum, and can be distinguished from all of those orange-

expanded testae. These two species occasionally hybridize; hybrids with R. cumberlandense also are known. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

C. Rhododendron flammeum is closely related to R. calendulaceum, R. cumberlandense, and R. prunifolium, all of which are characterized by orange to red

to R. arborescens, and possibly also R. atlanticum. Hybrids with R. cumberlandense and R. arborescens are known. Plants with white corollas and a yellow