Latitudinal range: 25.5° to 35.9°

Habitats: tropical/subtropical moist broadleaf forest (2), temperate broadleaf/mixed forest (8)

Found in 11 samples

China: Mt. Shennongjia, Kajun Village (MK-3) (Late Eocene)

India: Ialong, Binsar Wildlife Sanctuary

Japan: University Forest, Chichibu Mountains, River Segire (canopy-closed stands), River Segire (gaps)

Nepal: Amaldapani, Juphal

United States: Highlands

See also Rhododendron arboreum, Rhododendron calendulacea, Rhododendron concinnum, Rhododendron dilatanum, Rhododendron hypoglaucum, Rhododendron maximum, Rhododendron simsii, Rhododendron sp. 1, Rhododendron sp. 2, Rhododendron tashiroi, Rhododendron wadanum