Rhododendron protistum Balf.f. & Forrest var. giganteum (Forrest ex Tagg) D.F.Chamb.
Collector/Expedition: Gaoligong Shan Expedition (1998)
Collection date: 30 October 1998
Country of origin: China:Yunnan:Tengchong
Collecting locality: Datang Cun, Huochaodi, N of Datang on the W slope of Gaoligong Shan. Specimens are from what is believed to be the type tree of R. giganteum.
Latitude: 25° 48' 0'' N, Longitude: 98° 42' 0'' E
Habitat: Broadleaved evergreen forest dominated by_ Lithocarpus _,_ Rhododendron _, and bamboo. Growing on a moist forested slope.
Description: Tree ca. 25 m tall.
Herbarium region: 4 (Inner China, Korea and Taiwan)