| Rondeletia suffrutescens Brandegee, 1914 |
| Rondeletia tacanensis Lundell, 1939 |
| Rondeletia tenorioi Lorence, 1991 |
| Rondeletia tuxtlensis Lorence & Cast.-Campos, 1988 |
| Rondeletia uxpanapensis Lorence & Cast.-Campos, 1988 |
| Rondeletia versicolor Hook., 1851 |
| Rondeletia villosa Hemsl., 1879 |
| Rondeletia volubilis Sessé & Moc., 1888 |
| Rondeletia vulcanicola Standl. & Steyerm., 1940 |
| Rondeletia wendtii Lorence & Cast.-Campos, 1988 |
| Rondeletia yucatanensis Lundell, 1976 |
| Rondeletia zolleriana Standl. & Steyerm., 1940 |
| Rondeletieae Burnett, 1835 |
| Rovaeanthus Borhidi, 2004 |
| Rovaeanthus strigosus (Benth.) Borhidi, 2004 |
| Rovaeanthus suffrutescens (Brandegee) Borhidi, 2004 |
| Rubia L., 1753 |
| Rubia acuminata M. Martens & Galeotti, 1844 |
| Rubia hypocarpia (L.) DC., 1830 |
| Rubia laevigata DC., 1830 |