Rhododendron species U
Global Biodiversity Information Facility (GBIF), U
Flora of China
GBIF 2019
Rhododendron ultimum Wernham
Rhododendron
unciferum P.C.Tam
Rhododendron ungernii Trautv
Rhododendron ungernii Trautv. ex Regel 2
Rhododendron
uniflorum Hutch. & Kingdon-Ward
Rhododendron uvariifolium Diels
Rhododendron uwaense H .Hara
& T.Yamanaka