| Parosela melantha (Schauer) Rydb., 1920 |
| Parosela minor Rose, 1905 |
| Parosela minutiflora Rose, 1905 |
| Parosela mollis (Benth.) A. Heller, 1900 |
| Parosela mollis var. neomexicana (A. Gray) J.F. Macbr., 1922 |
| Parosela nana (Torr.) A. Heller, 1895 |
| Parosela neglecta (B.L. Rob.) Rose, 1905 |
| Parosela neomexicana (A. Gray) A. Heller, 1900 |
| Parosela nutans (Cav.) Rose, 1905 |
| Parosela occidentalis Rydb., 1920 |
| Parosela oculata Rydb., 1919 |
| Parosela orcuttii (S. Watson) Parish, 1913 |
| Parosela ordiae (A. Gray) C. Heller, 1900 |
| Parosela painteri Rose, 1906 |
| Parosela palmeri Rose, 1905 |
| Parosela peninsularis Rose, 1905 |
| Parosela pilifera Rydb., 1920 |
| Parosela pilosa Rydb., 1919 |
| Parosela platyphylla Rydb., 1920 |
| Parosela plumosa (S. Watson) Rose, 1906 |