https://www.rhs.org.uk/plants/89482/rhododendron-fortunei-subsp-discolor-twice-coloured-cloud-brocade-rhodendron-twice-coloured-fortune-s-rhododendron/details
Rhododendron fortunei subsp. discolor | twice-coloured cloud-brocade rhodendron Shrubs/RHS
rhododendron fortuneisubsptwice