| Athyrium alpestre (Hoppe) Clairv. var. americanum Butters [FNA2] |
3 |
American alpine lady fern |
| Athyrium filix-femina (L.) Roth ex Mert. var. cyclosorum Rupr. [FNA2] |
3 |
lady fern, northwestern lady fern |
| Cystopteris fragilis (L.) Bernh. [FNA2, H&C] |
2 |
fragile fern, brittle fern, bladder fern |
| Dryopteris arguta (Kaulf.) Watt [FNA2, H&C] |
1 |
coastal or marginal wood fern |
| Dryopteris carthusiana (Vill.) H.P. Fuchs [FNA2] |
5 |
spinulose or toothed wood fern |
| Dryopteris cristata (L.) A. Gray [FNA2, H&C] |
1 |
crested wood fern or shield fern |
| Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy [FNA2, not in H&C] |
5 |
northern or spreading wood fern |
| Dryopteris filix-mas (L.) Schott [FNA2, H&C] |
1 |
male fern |
| Gymnocarpium ×brittonianum (Sarvela) K.M. Pryer & Haufler |
0 |
hybrid oak fern |
| Gymnocarpium disjunctum (Rupr.) Ching [FNA, not in H&C] |
4 |
western or Pacific oak fern |
| Gymnocarpium dryopteris (L.) Newman [FNA2, H&C] |
5 |
common or northern oak fern |
| Polystichum andersonii M. Hopkins [FNA2, H&C] |
2 |
Anderson's sword fern, Vancouver holly fern |
| Polystichum californicum (D.C. Eaton) Diels [FNA2, H&C] |
2 |
California sword fern |
| Polystichum californicum (D.C. Eat.) Diels × Polystichum munitum (Kaulf.) Presl |
0 |
|
| Polystichum imbricans (D.C. Eaton) D.H. Wagner ssp. imbricans [FNA2] |
2 |
imbricate or narrow-leaved sword fern |
| Polystichum kruckebergii W.H. Wagner [FNA2, H&C] |
0 |
Kruckeberg's sword fern or holly fern |
| Polystichum kruckebergii W.H. Wagner × Polystichum munitum (Kaulf.) C. Presl [FNA2] |
0 |
hybrid holly fern |
| Polystichum lemmonii Underw. [FNA2, H&C] |
2 |
Lemmon's holly fern, Shasta fern |
| Polystichum lemmonii Underw. × Polystichum munitum (Kaulf.) C. Presl [FNA2] |
0 |
hidden sword fern |
| Polystichum lemmonii Underw. × Polystichum scopulinum (D.C. Eaton) Maxon [FNA2] |
0 |
serpentine holly fern |
| Polystichum lonchitis (L.) Roth [FNA2, H&C] |
1 |
mountain or northern holly fern |
| Polystichum munitum (Kaulf.) C. Presl [FNA2, H&C] |
2 |
western or common sword fern |
| Polystichum munitum (Kaulf.) C. Presl × Polystichum scopulinum (D.C. Eaton) Maxon [FNA2] |
0 |
hybrid sword fern |
| Polystichum scopulinum (D.C. Eaton) Maxon [FNA2, H&C] |
2 |
rock sword fern, mountain holly fern |
| Woodsia oregana D.C. Eaton ssp. oregana [FNA2, H&C] |
1 |
Oregon or western cliff fern |
| Woodsia scopulina D.C. Eaton ssp. laurentiana Windham [FNA2, not in H&C] |
0 |
Laurentian cliff fern |
| Woodsia scopulina D.C. Eaton ssp. scopulina [FNA2] |
1 |
mountain or Rocky Mountain cliff fern |
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