西施花

本种与鹿角杜鹃的区别：叶窄椭圆状披针形或倒披针形，长7-12厘米，有光泽；花梗细，长约3.5厘米，雄蕊不伸出花冠外，花丝中下部被短柔毛；芽鳞边缘有细睫毛。花期4-5月。

产地：台湾

生境：石质山坡

海拔：1600-2600米

Rhododendron ellipticum Maxim. in Bull. Acad. Sci. St. Petersb. 32: 479. 1888; Hemsl. in Journ. Linn. Soc. Bot. 26: 22. 1889; Matsum. in Bot. Mag. Tokyo 12: 13. 1893;台湾植物志4: 24. 1978; M. N. Philip. et W. R. Philip. in Not. Bot. Gard. Edinb. 40: 225. 1982.——R. leptosanthum Hayata, Icon. Pl. Form. , 3: 137. 1913; Kanehira, Form. Trees, 319. f. 2. 323. 1917.——R. tanakai Hayata, in ibid. 4: 15. 1914; Wils. in Journ. Arn. Arb. 6: 175. 1925.——R. leptanthum Hayata in Matsum. Icon. Pl. Kois. , 2: 93. t. 131. 1915.——R. leiopodum Hayata, Form. Trees, 322. 1917; Wils. in ibid. 6: 176. 1925; Hutch. in Stevenson, Spec. Rhodod. 618. 1930; 中国高等植物图鉴3: 158. 图4270. 1974.