退色血红杜鹃 tui se xue hong du juan

Rhododendron cloiophorum I. B. Balfour & Forrest, Notes Roy. Bot. Gard. Edinburgh 11: 37. 1919; R. asmenistum I. B. Balfour & Forrest; R. cloiophorum subsp. asmenistum (I. B. Balfour & Forrest) Tagg; R. cloiophorum subsp. leucopetalum (I. B. Balfour & Forrest) Tagg; R. cloiophorum var. leucopetalum (I. B. Balfour & Forrest) Davidian; R. leucopetalum I. B. Balfour & Forrest; R. sanguineum subsp. cloiophorum (I. B. Balfour & Forrest) Cowan; R. sanguineum subsp. leucopetalum (I. B. Balfour & Forrest) Cowan.

Bud scales usually deciduous. Corolla white, or yellow blushed to pink, to pink; ovary eglandular.

Alpine Rhododendron thickets, rocky slopes; 3800–4300 m. SE Xizang, NW Yunnan.