Osmunda claytoniana

Taxonavigation

Taxonavigation: Osmundales
Superregnum: Eukaryota Regnum: Plantae Divisio: Tracheophyta Divisio: Pteridophyta Classis: Polypodiopsida Ordo: Osmundales

Familia: Osmundaceae
Genus: Osmunda
Species:

Osmunda claytoniana L., Sp. Pl. 2: 1106 (1753).

Homotypic
- Struthiopteris claytoniana (L.) Bernh., J. Bot. (Schrader) 1800(2): 126 (1801).
- Plenasium claytonianum (L.) C.Presl, Gefässbundel Farrn: 17 (1847).
- Plenasium claytonianum (L.) C.Presl, Abh. Königl. Böhm. Ges. Wiss., ser. 5, 5: 325 (1848).
- Osmunda claytoniana var. vera Wherry, Amer. Fern J. 27: 58 (1937), nom. inval.
- Osmundastrum claytonianum (L.) Tagawa, J. Jap. Bot. 17: 697 (1941).
- Claytosmunda claytoniana (L.) Metzgar & Rouhan, J. Syst. Evol. 54(6): 594 (2016).
Heterotypic
- Osmunda interrupta Michx., Fl. Bor.-Amer. 2: 273 (1803).
  - Plenasium interruptum (Michx.) C.Presl, Gefässbundel Farrn: 17 (1847).
- Osmunda basilaris Spreng., Anleit. Kenntn. Gew. 3: 160 (1804).
- Osmunda monticola Wall., Numer. List: n.° 52 (1829).
- Osmunda claytoniana var. dubia Grout, List N. Amer. Pterid.: 13, 28 (1901).
  - Osmunda claytoniana f. dubia (Grout) Clute, Fern Bull. 13: 119 (1905).
- Osmunda claytoniana f. tomentosa Neidorf, Amer. Fern J. 39: 100 (1949).

Native distribution areas:

Continental: Europe
- Regional: Middle Europe
  - Netherlands (introduced).
Continental: Northern America
- Regional: Western Canada
  - Manitoba.
- Regional: Eastern Canada
  - Labrador, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Québec.
- Regional: North-Central U.S.A.
  - Illinois, Iowa, Minnesota, Missouri, Wisconsin.
- Regional: Northeastern U.S.A.
  - Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia.
- Regional: Southeastern U.S.A.
  - Alabama, Arkansas, Delaware, Georgia, Kentucky, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia.

Linnaeus, C. 1753. Species Plantarum. Tomus II: 1066. Reference page.
Pteridophyte Phylogeny Group (PPG I) 2016. A community-derived classification for extant lycophytes and ferns. Journal of Systematics and Evolution 54(6): 563–603. DOI: 10.1111/jse.12229 Reference page.

Govaerts, R. et al. 2024. Osmunda claytoniana in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2024 December 18. Reference page.
International Plant Names Index. 2024. Osmunda claytoniana. Published online. Accessed: December 18 2024. Reference page.
Hassler, M. 2025. World Plants. Synonymic Checklist and Distribution of the World Flora. . Osmunda claytoniana. Accessed: 20 July 2025. [Claytosmunda claytoniana subsp. vestita: nom inval.]
Tropicos.org 2024. Osmunda claytoniana. Missouri Botanical Garden. Published online. Accessed: 18 December 2024. Reference page.
USDA, ARS, Germplasm Resources Information Network. Osmunda claytoniana in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.