Nuphar sect. Astylus

File:Nuphar variegata 15-p.bot-nuphar.vari-002.jpg

File:Nuphar sagittifolia.jpg

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| footer = Broad-necked, deeply furrowed fruit of Nuphar sect. Astylus (left) and smooth, urceolate fruit with a slim, elongate neck of Nuphar sect. Nuphar (right)

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Its species are herbaceous plants.

The flowers have 6–9 sepals. The androecium consists of laminar stamens with long anthers and short filaments. The furrowed,Padgett, D. J. (2003). [https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=13667444e7b5514bc66601789b6dd1b1ed842319 Phenetic studies in Nuphar Sm.(Nymphaeaceae): variation in sect. Nuphar.] Plant Systematics and Evolution, 239, 187-197.Manaaki Whenua – Landcare Research. (n.d.-d). Nuphar Sm. Flora of New Zealand. Retrieved December 9, 2024, from https://www.nzflora.info/factsheet/Taxon/Nuphar.html barrel-shaped, ovoid fruit does not have a prominent neck.Padgett, Donald J . (1999). Nomenclatural novelties in Nuphar (Nymphaeaceae). SIDA, Contributions to Botany, 18, 823--826. https://www.biodiversitylibrary.org/part/163222

It was described by Donald Jay Padgett in 1999 with Nuphar advena {{small|(Aiton) W.T.Aiton}} as the type species.Nuphar sect. Astylus Padgett. (n.d.-b). International Plant Names Index. Retrieved December 9, 2024, from https://www.ipni.org/n/318884-2

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• Nuphar advena {{small|(Aiton) W.T.Aiton}}
• Nuphar polysepala {{small|Engelm.}}
• Nuphar variegata {{small|Engelm. ex Durand}}
• Nuphar sagittifolia {{small|(Walter) Pursh}}Weakley, A. S., Southeastern Flora Team, & University of North Carolina Herbarium, North Carolina Botanical Garden. (n.d.). Nuphar sagittifolia (Walter) Pursh. Flora of the Southeastern United States. Retrieved December 9, 2024, from https://fsus.ncbg.unc.edu/main.php?pg=show-taxon.php&taxonid=283#
• Nuphar carlquistii {{small|DeVore, Taylor & Pigg}}DeVore, M. L., Taylor, W., & Pigg, K. B. (2015). [https://www.academia.edu/download/73843617/Nuphar_carlquistii_sp._nov._Nymphaeacea20211029-32567-1t1wile.pdf Nuphar carlquistii sp. nov.(Nymphaeaceae): a water lily from the latest early Eocene, Republic, Washington.] International Journal of Plant Sciences, 176(4), 365-377.
• Nuphar ulvacea {{small|(G.S.Mill. & Standl.) Standl.}}
• Nuphar orbiculata {{small|(Small) Standl.}}
• Nuphar ozarkana {{small|(G.S.Mill. & Standl.) Standl.}}

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The section name Astylus means without a style.A Grammatical Dictionary of Botanical Latin. (n.d.-b). Missouri Botanical Garden. Retrieved December 9, 2024, from https://www.mobot.org/mobot/latindict/keyDetail.aspx?keyWord=astylusGledhill, D. (2008). [https://www.google.de/books/edition/The_Names_of_Plants/NJ6PyhVuecwC?hl=de&gbpv=1&printsec=frontcover&bsq=astylus The Names of Plants.] p. 60. Vereinigtes Königreich: Cambridge University Press. The fruits of Nuphar sect. Astylus have broad necks, whereas fruits of Nuphar sect. Nuphar have narrow necks or "styles".

It is native to North America.

The fossil species †Nuphar carlquistii from the early eocene of north-central Washington, USA has been identified as member of Nuphar sect. Astylus.

The flowers are pollinated by flies, bees, and beetles.

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Category:Plant sections