| Adiantum aleuticum | five-finger fern | A1 |
| Aspidotis californica | California lace fern | A2 |
| Aspidotis carlotta-halliae | Carlotta Hall's lace fern | *A1x |
| Aspidotis densa | dense lace fern, Indian's dream | A1x |
| Equisetum laevigatum | smooth scouring rush | A2 |
| Myriopteris covillei | Coville's lip fern | C |
| Myriopteris gracillima | lace fern | A1 |
| Myriopteris intertexta | coastal lip fern | B |
| Pilularia americana | pillwort | A1 |
| Polypodium scouleri | leather-leaf fern | A1 |
| Polystichum californicum | California sword fern | A1 |
| Polystichum imbricans subsp. imbricans | rock sword fern | A1x |