Nuphar advena (spatterdock or cow lily or yellow pond-lily) is a species of Nuphar native throughout the eastern United States and in some parts of Canada, as well as Mexico and Cuba. It is locally naturalized in Britain.

Description

Nuphar advena is a perennial, aquatic herb with spongy rhizomes that are wide. The leaves are mostly emergent,University of Michigan Herbarium. (n.d.-a). Nuphar advena (Aiton) W. T. Aiton. Michigan Flora. Retrieved February 1, 2025, from https://michiganflora.net/record/1725Alabama Herbarium Consortium (AHC) & University of West Alabama. (n.d.). Nuphar advena. APA: Alabama Plant Atlas. Retrieved February 1, 2025, from http://floraofalabama.org/Plant.aspx?id=2702 but can also be floating, or submersed. The submerged leaves are long and wide.

The flowers are protogynous, fragrant, nectariferous,Lippok, B., Gardine, A. A., Williamson, P. S., & Renner, S. S. (2000). Pollination by flies, bees, and beetles of Nuphar ozarkana and N. advena (Nymphaeaceae). American Journal of Botany, 87(6), 898–902. solitary,Wisconsin State Herbarium, UW-Madison. (n.d.-a). Nuphar advena (Aiton) W.T.Aiton. Online Virtual Flora of Wisconsin. Retrieved February 1, 2025, from https://wisflora.herbarium.wisc.edu/taxa/index.php?taxon=4337 yellow-green, and up to 4 cm wide. They float on the water surface or extend beyond it. The flowers have six sepals while the gynoecium consists of 9–23 carpels. The fruit is fleshy, ovoid to broadly obovate, ribbed, green, and 2–5 cm long and wide. It contains 186–353 seeds, which are 3–6 mm long.

Cytology The chromosome count is 2n = 34. The chloroplast genome is 160866 bp long.

Taxonomy It was first published as Nymphaea advena by William Aiton in 1789.Aiton, William, Bauer, Franz Andreas, Sowerby, James, Ehret, Georg Dionysius, & Nicol, George. (1789). Hortus Kewensis, or, A catalogue of the plants cultivated in the Royal Botanic Garden at Kew (Vol. 2, Issue 13, p. 226). Printed for George Nicol, Bookseller to his Majesty. https://www.biodiversitylibrary.org/page/4864646Nuphar advena (Aiton) W.T.Aiton. (n.d.). Plants of the World Online. Retrieved February 1, 2025, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30043701-2Nymphaea advena Aiton. (n.d.). International Plant Names Index. Retrieved February 1, 2025, from https://www.ipni.org/n/281429-2 It was placed into the genus Nuphar as Nuphar advena published by William Townsend Aiton in 1811.Aiton, William, Aiton, William Townsend, & King’s College London. (1810). Hortus kewensis, or, A catalogue of the plants cultivated in the Royal Botanic Garden at Kew (Vol. 3, p. 295). Longman, Hurst, Rees, Orme, and Brown. https://www.biodiversitylibrary.org/page/47853133Nuphar advena (Aiton) W.T.Aiton. (n.d.-b). International Plant Names Index. Retrieved February 1, 2025, from https://www.ipni.org/n/30043701-2 It is placed in the section Nuphar sect. Astylus.Nuphar advena (Aiton) W.T. Aiton. (n.d.). Database of Vascular Plants of Canada (VASCAN). Retrieved February 1, 2025, from https://data.canadensys.net/vascan/taxon/6712

Natural hybridisation In the United Kingdom, it has hybridised with Nuphar lutea, resulting in the hybrid Nuphar × porphyranthera.Lansdown, R., & Ruhsam, M. (2022). Yellow water lilies (Nuphar, Nymphaeaceae) in Great Britain: a new hybrid, a reappraisal of records, and a revised status of N. advena. Edinburgh Journal of Botany, 79, 1-15.Nuphar × porphyranthera Lansdown & Ruhsam. (n.d.). International Plant Names Index. Retrieved February 1, 2025, from https://www.ipni.org/n/77317649-1

Etymology The specific epithet advena means immigrant,A Grammatical Dictionary of Botanical Latin. (n.d.-b). Missouri Botanical Garden. Retrieved February 1, 2025, from http://www.mobot.org/mobot/latindict/keyDetail.aspx?keyWord=AdvenaNative Plant Trust. (n.d.-a). Nuphar advena — immigrant pond-lily. Go Botany. Retrieved February 1, 2025, from https://gobotany.nativeplanttrust.org/species/nuphar/advena/ outsider, foreigner, or stranger.Hibbertia advena T.Hammer & Toelken. (n.d.). International Plant Names Index. Retrieved February 1, 2025, from https://www.ipni.org/n/77321192-1

Distribution and habitat It is native to Canada (such as Nova Scotia), the United States, Mexico, and Cuba. It has been introduced to the United Kingdom.Spatter-dock Nuphar advena (Aiton) W.T.Aiton. (n.d.). PlantAtlas. Retrieved February 1, 2025, from https://plantatlas2020.org/atlas/2cd4p9h.gms

It occurs in ponds, lakes, streams, rivers, marshes, and swamps.

Ecology The flowers are pollinated by sweat bees, syrphid flies, and leaf beetles.

The seeds are eaten by turtles and waterfowl.

The rootstocks are sometimes collected by muskrats.

Conservation The NatureServe conservation status is T5 Secure.

Uses The plant is used as food.Nuphar advena (Aiton) W.T. Aiton Spatterdock. (n.d.). Missouriplants. Retrieved February 1, 2025, from https://www.missouriplants.com/Nuphar_advena_page.htmlSpatterdock | Nuphar advena. (n.d.). Mississippi State University. Retrieved February 1, 2025, from https://extension.msstate.edu/publications/spatterdock-nuphar-advena The dried seeds can be eaten or ground to flour. Native Americans cooked the rootstocks and removed the rind to prepare the sweetish, glutinous contents in various ways.

It is also cultivated as an ornamental plant.Nuphar advena (NUPLM). (n.d.). EPPO Global Database. Retrieved February 1, 2025, from https://gd.eppo.int/taxon/NUPLM

References

External links Yellow Pond Lily