Nuphar microphylla
{{Short description|Species of plant}}
{{Speciesbox
| image = Nuphar microphylla Bot. Mag. 31. 1243. 1809.jpg
| image_caption = 1809 illustration
| genus = Nuphar
|parent = Nuphar sect. Nuphar
| species = microphylla
| synonyms_ref = {{GBIF |id=6434939 |taxon=Nuphar microphylla |accessdate=24 March 2021}}
| synonyms =
{{collapsible list|bullets = true
|Nenuphar minimum (Willd.) Link
|Nuphar kalmianum Aiton
|Nuphar lutea var. kalmiana (Michx.) Torr. & A.Gray
|Nuphar luteum var. pumilum (Timm) E.O.Beal
|Nuphar microphylla f. multisepala Lakela
|Nuphar minima (Willd.) Sm.
|Nymphaea kalmiana Sims
|Nymphaea lutea var. kalmiana Michx.
|Nymphaea lutea var. minima Willd.
|Nymphaea microphylla Pers.
|Nymphozanthus microphyllus (Pers.) Fernald
|Nyphar luteum var. kalmianum (Michaux) Walpers}}
}}
Nuphar microphylla is a perennial, rhizomatous, aquaticNuphar microphylla (Pers.) Fernald. (n.d.). Plants of the World Online. Retrieved January 30, 2025, from https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A171086-2 herb found in North America. It is listed as a special concern and believed extirpated in Connecticut.[https://web.archive.org/web/20151023162806/http://www.ct.gov/deep/lib/deep/wildlife/pdf_files/nongame/ETS15.pdf "Connecticut's Endangered, Threatened and Special Concern Species 2015"]. State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 17 January 2018. (Note: This list is newer than the one used by plants.usda.gov and is more up-to-date.)
Description
=Vegetative characteristics=
Nuphar microphylla is a perennial,Wisconsin State Herbarium, UW-Madison. (n.d.). Nuphar microphylla (Pers.) Fernald. Flora of Wisconsin. Retrieved January 30, 2025, from https://wisflora.herbarium.wisc.edu/taxa/index.php?taxon=4338 rhizomatous, aquatic herb with 1–2 cm wide rhizomes.Nuphar microphylla in Flora of North America @ efloras.org. (n.d.). Retrieved January 30, 2025, from http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500815 The ovate to broadly elliptic, 3.5–10(–13) cm long, and 3.5–7.5(–8.5) cm wide floating leaves have a deep sinus. The abaxial leaf surface is often purple.Perron, M. (n.d.). Small yellow pond-lily Nuphar microphylla Petit nénuphar jaune. Flore Du Québec. Retrieved January 30, 2025, from http://floreduquebec.ca/english/nuphar%20microphyllaPA Department of Conservation and Natural Resources. (n.d.). Nuphar microphylla Yellow Cowlily. Pennsylvania Natural Heritage Program (PNHP). Retrieved January 30, 2025, from https://www.naturalheritage.state.pa.us/factsheet.aspx?=14187 The leaf venation is pinnate.Massachusetts Division of Fisheries & Wildlife. (2015). Tiny Cow-lily Nuphar microphylla (Pers.) Fern. In Natural Heritage & Endangered Species Program. Retrieved January 30, 2025, from https://www.mass.gov/doc/tiny-cow-lily/download
=Generative characteristics=
Cytology
Taxonomy
It was first published as Nymphaea microphylla {{au|Pers.}} by Christiaan Hendrik Persoon in 1806.Persoon, C. H. (1805). Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum (Vol. 2, p. 63). C.F. Cramerum. https://www.biodiversitylibrary.org/page/235397Nymphaea microphylla Pers. (n.d.). International Plant Names Index. Retrieved January 30, 2025, from https://www.ipni.org/n/605628-1 It was placed into the genus Nuphar {{au|Sm.}} as Nuphar microphylla {{au|(Pers.) Fernald}} published by Merritt Lyndon Fernald in 1917.Fernald, Merritt Lyndon. (1917). A Diagnostic Character of Nuphar microphyllum. Rhodora, 19, 111--111. https://www.biodiversitylibrary.org/part/188288 It is placed in the section Nuphar sect. Nuphar.Nuphar microphylla (Persoon) Fernald. (n.d.). Database of Vascular Plants of Canada (VASCAN). Retrieved January 30, 2025, from https://data.canadensys.net/vascan/taxon/6713 It is a parent species of the natural hybrid Nuphar × rubrodisca {{au|Morong.}}
=Etymology=
The specific epithet microphylla means small-leaved.Mifsud, S. (n.d.). Micromeria microphylla (Maltese savory). MaltaWildPlants.com - the Online Flora of the Maltese Islands. Retrieved January 30, 2025, from https://www.maltawildplants.com/LABT/Micromeria_microphylla.phpPilea microphylla. (n.d.). Missouri Botanical Garden. Retrieved January 30, 2025, from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b614
Ecology
=Habitat=
Conservation
It is endangered in the US-american states Pennsylvania, Michigan, Massachusetts, and New Hampshire.Native Plant Trust. (n.d.). Nuphar microphylla — small-leaved pond-lily. Native Plant Trust Go Botany. Retrieved January 30, 2025, from https://gobotany.nativeplanttrust.org/species/nuphar/microphylla/ It is susceptible to pollution,Michigan State University. (n.d.). Nuphar microphylla (Small yellow pond lily). Michigan Natural Features Inventory. Retrieved January 30, 2025, from https://mnfi.anr.msu.edu/species/description/14438/Nuphar-microphylla e.g., by herbicides meant to combat invasive weeds. It is also threatened by invasive plants.
References
{{Reflist}}
{{Taxonbar|from=Q2005182}}
Category:Flora of Northern America
Category:Flora of the United States
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