| Acacia minuta (M.E. Jones) R.M. Beauch., 1980 |
| Acacia mirandae L. Rico, 1982 |
| Acacia nelsonii Saff., 1914 |
| Acacia neovernicosa Isely, 1969 |
| Acacia neriifolia A. Cunn. ex Benth., 1842 |
| Acacia obliquifolia M. Martens & Galeotti, 1843 |
| Acacia occidentalis Rose, 1903 |
| Acacia ortegae (Britton & Rose) Gentry, 1948 |
| Acacia pacensis Rudd & A.M. Carter, 1983 |
| Acacia painteri (Britton & Rose) L. Rico, 2001 |
| Acacia palmeri S. Watson, 1882 |
| Acacia paniculata Willd., 1806 |
| Acacia paradoxa DC., 1813 |
| Acacia parviflora Little, 1959 |
| Acacia pellacanta (Meyen) Vogel, 1843 |
| Acacia penicillata Standl., 1919 |
| Acacia peninsularis (Britton & Rose) Standl., 1936 |
| Acacia pennatula (Schltdl. & Cham.) Benth., 1842 |
| Acacia pennatula subsp. parvicephala Seigler & Ebinger, 1988 |
| Acacia pennatula subsp. pennatula (Schltdl. & Cham.) Benth., 1842 |