Nuphar variegata
| Variegated pond-lily | |
|---|---|
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| Nuphar variegata in its natural habitat in Plaisance National Park, Quebec, Canada | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nuphar |
| Section: | Nuphar sect. Astylus |
| Species: | N. variegata
|
| Binomial name | |
| Nuphar variegata | |
| Synonyms[2] | |
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List
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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
[edit]
Vegetative characteristics
[edit]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
[edit]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
[edit]The chromosome count is 2n = 34.[6]
Taxonomy
[edit]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
[edit]Together with Nuphar microphylla, it forms the natural hybrid Nuphar × rubrodisca.[9][6][15]
Etymology
[edit]The specific epithet variegata, from the Latin variegatus, means variously coloured.[16]
Conservation
[edit]The NatureServe conservation status is T5 Secure.[1]
Ecology
[edit]Habitat
[edit]It occurs in ponds, lakes, streams, and rivers[8] in up to 2 m deep water.[11]
References
[edit]- ^ a b 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
- ^ a b 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
- ^ 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.
- ^ a b 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
- ^ a b c d 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
- ^ a b c d e f g h i j 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
- ^ a b "Nuphar variegata". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 23 January 2018.
- ^ a b University of Michigan. (n.d.). Nuphar variegata Durand. Michigan Flora. Retrieved February 3, 2025, from https://michiganflora.net/record/1728
- ^ a b c 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/
- ^ 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.
- ^ a b c d Nuphar variegata bullhead pondlily. (n.d.). PAEnflowered. Retrieved February 3, 2025, from https://www.paenflowered.org/apgii/nymphaeales/nymphaeaceae/nuphar/nuphar-variegata
- ^ 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
- ^ a b Elliman, T. (2016). Wildflowers of New England. USA: Timber Press.
- ^ Nuphar variegata (Yellow Pond-lily). (n.d.). Minnesota Wildflowers. Retrieved February 3, 2025, from https://www.minnesotawildflowers.info/flower/yellow-pond-lily
- ^ 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
- ^ 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]
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