Rhododendron manipurense

At the University of California Botanical Garden, there is a rhododendron that was labeled as R. manipuerense. If you are in agreement with H. H. Davidian, as I am, this species is a separate species, and is not R. maddenii, as the plant has been relabeled.
Mike McCullough

R. manipuerense (Maddenii) synonym for R. maddenii ssp. crassum. Ikke hårdfør (-10C) i Danmark.

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R. maddenii
RSBG ARS Flora of China

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