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Taxon: Nuphar polysepala Engelm.

Genus: Nuphar
Section: Astylus
Family: Nymphaeaceae
Nomen number: 25419
Place of publication: Trans. Acad. Sci. St. Louis 2:282. 1866 "polysepalum"
Link to protologue:
Name Verified on: 26-Dec-1996 by ARS Systematic Botanists.
Accessions: 1 (0 active, 0 available) in National Plant Germplasm System

Autonyms (not in current use), synonyms and invalid designations:

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

Distributional Range:


    Northern America
    • SUBARCTIC AMERICA: Canada, [Northwest Territories (w.), Yukon] United States [Alaska]
    • WESTERN CANADA: Canada [British Columbia]
    • NORTHWESTERN U.S.A.: United States [Colorado (w. & c.), Idaho, Montana (w. & s.), Oregon, Washington, Wyoming]
    • SOUTH-CENTRAL U.S.A.: United States [New Mexico (n.)]
    • SOUTHWESTERN U.S.A.: United States [Arizona (Coconino & Navajo Cos.), California (n. & c.), Nevada (w.), Utah (n.e.)]


  1. Beal, E. O. 1956. Taxonomic revision of the genus Nuphar Sm. of North America and Europe. J. Elisha Mitchell Sci. Soc. 72:339. Note: lists as "polysepalum"; = Nuphar lutea subsp. polysepala (Engelm.) E. O. Beal
  2. Brayshaw, T. C. 1989. Buttercups, waterlilies and their relatives in British Columbia. Mem. Roy. Brit. Columb. Mus. 1:10. Note: lists as "polysepalum"
  3. Cody, W. J. 1996. Flora of the Yukon Territory. Note: lists as "polysepalum"
  4. Dorn, R. D. 1977. Manual of the vascular plants of Wyoming Note: lists as "polysepalum"
  5. FNA Editorial Committee. 1993-. Flora of North America.
  6. Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest. Note: lists as "polysepalum"
  7. Hultén, O. E. G. 1968. Flora of Alaska and neighboring territories. Note: lists as "polysepalum"
  8. Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico. Note: lists as "polysepalum"
  9. Munz, P. A. & D. D. Keck. 1959. A California flora. Note: lists as "polysepalum"
  10. Padgett, D. J. 2007. A monograph of Nuphar (Nymphaeaceae). Rhodora 109:58-63.
  11. Porsild, A. E. & W. J. Cody. 1980. Vascular plants of continental Northwest Territories, Canada Note: lists as "polysepalum"
  12. Ricketson, J. 1995. Nymphaeaceae Waterlily family. J. Arizona-Nevada Acad. Sci. 29:26. Note: lists as "polysepalum"; = Nuphar lutea subsp. polysepala (Engelm.) E. O. Beal
  13. Welsh, S. L. et al. 1993. A Utah flora. Note: lists as "polysepalum"

Check other web resources for Nuphar polysepala Engelm. :

  • Flora of North America: Collaborative Floristic Effort of North American Botanists
  • PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
  • BONAP North American Plant Atlas of the Biota of North America Program:
  • TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2020. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=25419. Accessed 12 July 2020.