| TaxonId | Name | Volume | Year | ||
| 242344372 | Rhododendron ramosissimum | Vol.14 | 2005 | ||
| 242344373 | Rhododendron ramsdenianum | 长轴杜鹃 | Vol.14 | 2005 | |
| 242344376 | Rhododendron rarosquameum | Vol.14 | 2005 | ||
| 242344377 | Rhododendron rasile | Vol.14 | 2005 | ||
| 200016539 | Rhododendron ravum | Vol.14 | 2005 | ||
| 242344378 | Rhododendron recurvum | Vol.14 | 2005 | ||
| 242344379 | Rhododendron recurvum var. oreonastes | Vol.14 | 2005 | ||
| 242444114 | Rhododendron redowskianum | 叶状苞杜鹃 | Vol.14 | 2005 | |
| 242344380 | Rhododendron regale | Vol.14 | 2005 | ||
| 242344381 | Rhododendron reginaldii | Vol.14 | 2005 | ||
| 242344382 | Rhododendron repens | Vol.14 | 2005 | ||
| 242344383 | Rhododendron repens var. chamaedoron | Vol.14 | 2005 | ||
| 242344384 | Rhododendron repens var. chamaethauma | Vol.14 | 2005 | ||
| 250059900 | Rhododendron repens var. chamaethomsonii | Vol.14 | 2005 | ||
| 200016540 | Rhododendron rex | 大王杜鹃 | Vol.14 | 2005 |
