Biology:Nuphar variegata

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Short description: Species of aquatic plant

Variegated pond-lily
Nuphar variegata in its natural habitat in Plaisance National Park, Quebec, Canada

Secure (NatureServe)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nuphar
Section: Nuphar sect. Astylus
Species:
N. variegata
Binomial name
Nuphar variegata
Engelm. ex Durand
Synonyms[2]

Nuphar variegata (variegated pond-lily, bullhead pond-lily or yellow pond-lily[3]) is rhizomatous, perennial, aquatic[4] herb[5] in the water lily family Nymphaeaceae native to much of Canada and the northernmost of the United States.[6][7]

Description

Upper and lower surface of Nuphar variegata leaf
Nuphar variegata flowering and fruiting

Vegetative characteristics

Nuphar variegata is a rhizomatous, perennial, aquatic[4] herb[5] with 2.5–7 cm wide rhizomes.[6] The leaves are submerged or floating, but most are floating leaves.[8][6] The submerged leaves are 7–35 cm long, and 5–25 cm wide.[9] The petiole is flattened.[10][11][6]

Generative characteristics

The 2.5–5 cm wide,[6] yellow flowers float on the water surface or extend beyond it.[12] The flowers have 6 yellow sepals[11] which enclose the small petals.[13] The gynoecium consists of 7–28 carpels.[6] The green to yellow,[13][11] or rarely red stigmatic disk with 7–28 stigmatic rays is 8–20 mm wide.[6] The fleshy,[9] strongly ribbed,[14] ovoid, 2–4.3 cm long, and 2–3.5 cm wide fruit bears 2.5-5 mm long seeds.[6]

Cytology

The chromosome count is 2n = 34.[6]

Taxonomy

It was first validly published by Elias Durand in 1866 based on previous work by George Engelmann.[5][2] It is placed in the section Nuphar sect. Astylus.[5][7]

Natural hybridisation

Together with Nuphar microphylla, it forms the natural hybrid Nuphar × rubrodisca.[9][6][15]

Etymology

The specific epithet variegata, from the Latin variegatus, means variously coloured.[16]

Conservation

The NatureServe conservation status is T5 Secure.[1]

Ecology

Habitat

It occurs in ponds, lakes, streams, and rivers[8] in up to 2 m deep water.[11]

References

  1. ↑ 1.0 1.1 Nuphar lutea ssp. variegata. (n.d.). NatureServe. Retrieved December 7, 2024, from https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.138590/Nuphar_lutea_ssp_variegata
  2. ↑ 2.0 2.1 Nuphar variegata Engelm. ex Durand. (n.d.). Plants of the World Online. Retrieved February 3, 2025, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:1117161-2
  3. ↑ Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario, Royal Ontario Museum, Toronto:McClelland and Stewart Ltd., p 53.
  4. ↑ 4.0 4.1 Wisconsin State Herbarium, UW-Madison. (n.d.-c). Nuphar variegata Durand. Online Virtual Flora of Wisconsin. Retrieved February 3, 2025, from https://wisflora.herbarium.wisc.edu/taxa/index.php?taxon=4340
  5. ↑ 5.0 5.1 5.2 5.3 Nuphar variegata Engelmann ex Durand. (n.d.). Database of Vascular Plants of Canada (VASCAN). Retrieved February 3, 2025, from https://data.canadensys.net/vascan/taxon/6715
  6. ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 Nuphar variegata in Flora of North America @ efloras.org. (n.d.). Retrieved February 3, 2025, from http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500821
  7. ↑ 7.0 7.1 {{citation | mode = cs1 | title = Nuphar variegata | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = 23 January 2018 }}
  8. ↑ 8.0 8.1 University of Michigan. (n.d.). Nuphar variegata Durand. Michigan Flora. Retrieved February 3, 2025, from https://michiganflora.net/record/1728
  9. ↑ 9.0 9.1 9.2 Native Plant Trust. (n.d.-c). Nuphar variegata — bullhead pond-lily, yellow pond-lily. Go Botany. Retrieved February 3, 2025, from https://gobotany.nativeplanttrust.org/species/nuphar/variegata/
  10. ↑ Haines, A. (2011). New England Wild Flower Society's Flora Novae Angliae: A Manual for the Identification of Native and Naturalized Higher Vascular Plants of New England. p. 85. Vereinigtes Königreich: Yale University Press.
  11. ↑ 11.0 11.1 11.2 11.3 Nuphar variegata bullhead pondlily. (n.d.). PAEnflowered. Retrieved February 3, 2025, from https://www.paenflowered.org/apgii/nymphaeales/nymphaeaceae/nuphar/nuphar-variegata
  12. ↑ Nuphar variegata Engelm. ex Durand – Yellow Pond Lily. (n.d.). Greater Ottawa Water Garden Horticultural Society (GOWGHS). Retrieved February 3, 2025, from https://www.ottawawatergardens.com/nuphar-variegata
  13. ↑ 13.0 13.1 Elliman, T. (2016). Wildflowers of New England. USA: Timber Press.
  14. ↑ Nuphar variegata (Yellow Pond-lily). (n.d.). Minnesota Wildflowers. Retrieved February 3, 2025, from https://www.minnesotawildflowers.info/flower/yellow-pond-lily
  15. ↑ Nuphar × rubrodisca Morong. (n.d.). Plants of the World Online. Retrieved February 3, 2025, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:171095-2
  16. ↑ R.S. Cowan, D.J. Du Puy, I.R.H. Telford, P.G. Kodela. Erythrina variegata, in P.G. Kodela (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Erythrina%20variegata [Date Accessed: 04 February 2025]

Wikidata ☰ Q2348528 entry



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