| 0 | PI 320398 | Col. No. K-84 | Athyrium yokoscense (Franch. & Sav.) Christ | Gangwon-do, Korea, South | | | Historic | 1967 | COLLECTED | | On rock ledges in sandy soil along trail on Mt. Odai | | 780 | | | | 1712571 | PI 320398 |
| 1 | PI 320399 | Col. No. K-147 | Athyrium yokoscense (Franch. & Sav.) Christ | Jeollanam-do, Korea, South | | | Historic | 1967 | COLLECTED | | In shade along trail on Mt. Chiri, Cholla Nam-do | | 1410 | | | | 1712572 | PI 320399 |
| 2 | NA 88885 | 'Crested Surf' | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | Michigan, United States | NA | | Not Available | 2024 | DEVELOPED | PRE 03/2024 | | | | | Cultivar | Full name as recorded at the U.S. National Arboretum: Athyrium niponicum var. pictum 'Crested Surf'. Received as Athyrium niponicum 'Crested Surf' | 2190947 | NA 88885 |
| 3 | NA 71640 | NA 71640 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. Old plants found growing in Fern Valley | 2149047 | NA 71640 |
| 4 | NA 71600 | NA 71600 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. Old plants found growing in Fern Valley | 2149015 | NA 71600 |
| 5 | NA 71599 | NA 71599 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. Old plants found growing in Fern Valley | 2149014 | NA 71599 |
| 6 | NA 71598 | NA 71598 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. Old plants found growing in Fern Valley | 2149013 | NA 71598 |
| 7 | NA 83175 | 'Regal Red' | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2016 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum 'Regal Red'. | 2153279 | NA 83175 |
| 8 | NA 84153 | 'Lady in Red' | Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G. Lawson | | NA | | Not Available | 2016 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina var. angustum 'Lady in Red'. Prior source TBD. | 2153543 | NA 84153 |
| 9 | NA 82927 | 'Lemon Cream' | Athyrium niponicum (Mett.) Hance | | NA | | Not Available | 2015 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium niponicum 'Lemon Cream'. | 2153134 | NA 82927 |
| 10 | NA 81019 | NA 81019 | Athyrium hybr. | | NA | | Not Available | 2012 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium 'Branford Beauty'. | 2152348 | NA 81019 |
| 11 | NA 79869 | 'Ghost' | Athyrium hybr. | | NA | | Not Available | 2011 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium 'Ghost'. | 2151957 | NA 79869 |
| 12 | NA 77425 | 'Wildwood Twist' | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2008 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum 'Wildwood Twist'. | 2151074 | NA 77425 |
| 13 | NA 77197 | 'Minutissimum' | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina 'Minutissimum'. | 2150982 | NA 77197 |
| 14 | NA 77198 | (slender type) | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2007 | | | | | | | Clone | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina Cristatum Group (slender type). | 2150983 | NA 77198 |
| 15 | NA 77774 | 'Frizelliae' | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina 'Frizelliae'. | 2151114 | NA 77774 |
| 16 | NA 77775 | 'Victoriae' | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina 'Victoriae'. | 2151115 | NA 77775 |
| 17 | NA 75641 | 'Wildwood Twist' | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2006 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum 'Wildwood Twist'. | 2150459 | NA 75641 |
| 18 | NA 74646 | NA 74646 | Athyrium niponicum (Mett.) Hance | | NA | | Not Available | 2005 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum. | 2150098 | NA 74646 |
| 19 | NA 74647 | 'Lady in Red' | Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G. Lawson | | NA | | Not Available | 2005 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina var. angustum 'Lady in Red'. | 2150099 | NA 74647 |
| 20 | NA 73635 | 'Burgundy Lace' | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2004 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum 'Burgundy Lace'. | 2149755 | NA 73635 |
| 21 | NA 72907 | NA 72907 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2003 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum. | 2149376 | NA 72907 |
| 22 | NA 72835 | NA 72835 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 2003 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum. | 2149355 | NA 72835 |
| 23 | NA 72366 | NA 72366 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 2002 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. | 2149291 | NA 72366 |
| 24 | NA 64639 | BJG-129 | Athyrium sinense Rupr. | Beijing Shi, China | | | Historic | 1994 | COLLECTED | 09/27/1994 | Huang Cheng Yu (Huang Cheng Valley), Baihua Shan Forest Preserve, Mentougou District. | 39.83361111, 115.56444444 | 1090 | Growing in association with Juglans mandshurica, Carpinus turczaninovii, Clematis heracleifolia, Dioscorea sp., Populus davidiana and Acanthopanax senticosus. | Wild material | | 1511256 | NA 64639 |
| 25 | NA 63835 | NA 63835 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 1992 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum. | 2147231 | NA 63835 |
| 26 | NA 62853 | NA 62853 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 1991 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum. | 2147037 | NA 62853 |
| 27 | NA 62823 | NA 62823 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 1991 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium filix-femina. | 2147030 | NA 62823 |
| 28 | NA 61607 | NA 61607 | Athyrium sp. | | NA | | Not Available | 1989 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Athyrium sp.. Form received: division. | 2146825 | NA 61607 |
| 29 | NA 58925 | NA 58925 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | | NA | | Not Available | 1987 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Athyrium niponicum var. pictum. | 2146516 | NA 58925 |
| 30 | NA 53636 | NA 53636 | Athyrium filix-femina (L.) Roth ex Mert. | | NA | | Not Available | 1984 | | | | | | | | | 1952561 | NA 53636 |
| 31 | NA 40079 | NA 40079 | Athyrium sp. | | NA | | Not Available | 1976 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Athyrium sp.. Det. by Fern Corwin as Athyrium sp. | 2144761 | NA 40079 |
| 32 | NA 40081 | NA 40081 | Athyrium niponicum (Mett.) Hance | Honshu, Japan | NA | | Not Available | 1976 | COLLECTED | 10/24/1976 | Along mountain road. | | | Roadside. | | | 1951254 | NA 40081 |
| 33 | NA 57373 | NA 57373 | Athyrium sp. | | NA | | Not Available | 1976 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Athyrium sp.. Taken from various potted plts. growing spontaneously. Identified as Athyrium sp. by Fern Corwin. | 2146325 | NA 57373 |