| TaxonId | Name | Volume | Year | ||
| 242344072 | Rhododendron laojunshanense | 老君山杜鹃 | Vol.14 | 2005 | |
| 242344073 | Rhododendron lapidosum | Vol.14 | 2005 | ||
| 242444097 | Rhododendron lapponicum | 高山杜鹃 | Vol.14 | 2005 | |
| 242444883 | Rhododendron lapponicum subsp. parvifolium | Vol.14 | 2005 | ||
| 242344074 | Rhododendron lasiopodum | Vol.14 | 2005 | ||
| 242344075 | Rhododendron lasiostylum | 毛花柱杜鹃 | Vol.14 | 2005 | |
| 242444098 | Rhododendron lateriflorum | 侧花杜鹃 | Vol.14 | 2005 | |
| 242344076 | Rhododendron lateritium | Vol.14 | 2005 | ||
| 200016464 | Rhododendron latoucheae | 西施花 | Vol.14 | 2005 | |
| 250059912 | Rhododendron latoucheae var. amamiense | Vol.14 | 2005 | ||
| 242344077 | Rhododendron latoucheae var. ionanthum | Vol.14 | 2005 | ||
| 200016465 | Rhododendron laudandum | 毛冠杜鹃 | Vol.14 | 2005 | |
| 242344079 | Rhododendron laudandum var. laudandum | 毛冠杜鹃(原变种) | Vol.14 | 2005 | |
| 242344080 | Rhododendron laudandum var. temoense | 疏毛冠杜鹃 | Vol.14 | 2005 | |
| 242344081 | Rhododendron laxiflorum | Vol.14 | 2005 |
