| Dryopteridaceae | |
Polystichum acrostichoides fo. acrostichoides
| | | |
| Dryopteridaceae | |
Polystichum acrostichoides var. acrostichoides
| | | |
| Dryopteridaceae | |
Polystichum acrostichoides fo. crispum
| Clute | Ferns in Their Haunts 317 | 1901 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. cristatum
| Clute | Fern Bull. 20: 81 | 1912 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. demittens
| C.F. Reed | Castanea 16: 65, f. 1 | 1951 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. furcatum
| F. Seym. | Fl. Vermont, ed. 4 28 | 1969 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. gravesii
| Clute | | |
| Dryopteridaceae | |
Polystichum acrostichoides fo. gymnosorum
| Neidorf | Amer. Fern J. 39: 103 | 1949 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. incisum
| (A. Gray) Gilbert | Manual 632 | 1848 |
| Dryopteridaceae | |
Polystichum acrostichoides var. incisum
| A. Gray | Manual 632 | 1848 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. lanceolatum
| Clute | Fern Bull. 20: 24 | 1912 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. ligulatum
| Gruber | Amer. Fern J. 30: 48 | 1940 |
| Dryopteridaceae | |
Polystichum acrostichoides var. lonchitoides
| M.G. Brooks | Castanea 12: 24 | 1947 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. multifidum
| Clute | Fern Bull. 15: 122 | 1909 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. orbiculatum
| Eames | Rhodora 33(392): 168 | 1931 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. recurvatum
| Clute | Fern Bull. 12: 79 | 1904 |
| Dryopteridaceae | |
Polystichum acrostichoides var. schweinitzii
| (L.C. Beck) Small | Bull. Torrey Bot. Club 20(12): 464 | 1893 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. spathiforme
| C.F. Reed | Castanea 16: 69 | 1951 |
| Dryopteridaceae | |
Polystichum acrostichoides fo. ventroperaferens
| Neidorf | Amer. Fern J. 39: 103, t. 9 | 1949 |