| Parkinsonia praecox (Ruiz & Pav. ex Hook.) Hawkins, 1999 |
| Parkinsonia spinosa Kunth, 1823 |
| Parkinsonia texana (A. Gray) S. Watson, 1876 |
| Parkinsonia texana var. macra (I.M. Johnst.) Isely, 1975 |
| Parkinsonia texana var. texana (A. Gray) S. Watson, 1876 |
| Parkinsonia thornberi M.E. Jones, 1908 |
| Parkinsonia torreyana S. Watson, 1876 |
| Parkinsonia x carterae Hawkins, 1999 |
| Parkinsonia x sonorae (Rose & I.M. Johnst. ex I.M. Johnst.) Hawkins & Felger, 2017 |
| Parosela Cav., 1802 |
| Parosela acutifolia Rydb., 1920 |
| Parosela alamosana Rose ex Rydb., 1919 |
| Parosela albiflora (A. Gray) Vail, 1894 |
| Parosela arizonica Vail, 1895 |
| Parosela arsenei J.F. Macbr., 1922 |
| Parosela atrocyanea Rydb., 1920 |
| Parosela aurea (Nutt. ex Pursh) Britton, 1894 |
| Parosela barbata (Oerst.) Rydb., 1920 |
| Parosela berlandieri (A. Gray) Rose, 1906 |
| Parosela bigelovii Rydb., 1920 |