蜜黄血红杜鹃

Rhododendron sanguineum var. himertum (Balf. f. et Forrest) Chamb. ex Cullen et Chamb. in Not. Bot. Gard. Edinb. 37: 334. 1979; Chamb. in Not. Bot. Gard. Edinb. 39:398. 1982; 西藏植物志3: 591. 1968; 云南植物志4: 442. 1986.——R. himertum Balf. f. et Forrest in Not. Bot. Gard. Edinb. 13: 48. 1920.——R. nebrities Balf. f. et Forrest in ibid. 13; 53. 1920. ——R. poliopeplum Balf. f. et Forrest in ibid. 13: 56. 1920. ——R. himertum Balf. f. et Forrest subsp. poliopelum (Balf. f. et Forrest) Tagg in Stevenson, Spec. Rhodod. 553. 1930.——R. himertum Balf. f. et Forrest subsp. nebrities (Balf. f. et Forrest) Tagg in ibid. 553. 1930. ——R. sanguineum Franch. subsp. himertum (Balf. f. et Forrest) Cowan in Not. Bot. Gard. Edinb. 20: 72. 1940. ——R. sanguineum Franch. subsp. aizoides Cowan in ibid. 20: 73. 1940. ——R. sanguieum Franch. subsp. melleum Cowan in ibid. 20; 73. 1940.

本变种与原变种的区别在于花冠为黄色而非亮红色。

产云南西北部和西藏东南部。生于海拔3 100-4 050米的杜鹃灌丛中。模式标本采自西藏东南部。