| Pterocassia goldmanii (Rose) Britton & Rose, 1930 |
| Pueraria DC., 1825 |
| Pueraria montana (Lour.) Merr., 1935 |
| Pueraria montana var. lobata (Willd.) Maesen & S.M. Almeida ex Sanjappa & Predeep, 1992 |
| Pueraria phaseoloides (Roxb.) Benth., 1867 |
| Punctati Taub., 1894 |
| Racosperma Mart., 1835 |
| Racosperma salignum (Labill.) Pedley, 1987 |
| Radiusia H. Reich., 1828 |
| Radiusia sericea (Nutt.) Heynh., 1841 |
| Ramirezella Rose, 1903 |
| Ramirezella buseri (Micheli) Rose, 1909 |
| Ramirezella calcoma Ochot.-Booth & Delgado, 1994 |
| Ramirezella crassa (McVaugh) Ochot.-Booth & Delgado, 1994 |
| Ramirezella lozanii (Rose) Piper, 1926 |
| Ramirezella micrantha Delgado & Ochot.-Booth, 1994 |
| Ramirezella nitida Piper, 1926 |
| Ramirezella occidentalis Rose, 1903 |
| Ramirezella penduliflora Delgado & Ochot.-Booth, 1994 |
| Ramirezella pubescens Rose, 1903 |