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Nuphar microphylla

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Nuphar microphylla
1809 illustration
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nuphar
Section: Nuphar sect. Nuphar
Species:
N. microphylla
Binomial name
Nuphar microphylla
Synonyms[1]
List
  • 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,[2] rhizomatous, aquatic[3] herb[4] found in North America. It is listed as a special concern and believed extirpated in Connecticut.[5]

Description

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Vegetative characteristics

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Nuphar microphylla is a perennial,[2] rhizomatous, aquatic[3] herb[4] with 1–2 cm wide rhizomes.[6] The ovate[7] to broadly elliptic, 3.5–10(–13) cm long, and 3.5–7.5(–8.5) cm wide floating leaves[6] have a deep sinus.[8][6] The abaxial leaf surface is often purple.[9][8] The leaf venation is pinnate.[10]

Generative characteristics

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The small,[11] yellow to green,[7] 1–2 cm wide flowers[6] float on the water surface.[10] The red stigmatic disks are 2.5–7 mm wide.[6]

Cytology

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

Taxonomy

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It was first published as Nymphaea microphylla Pers. by Christiaan Hendrik Persoon in 1806.[12][13] It was placed into the genus Nuphar Sm. as Nuphar microphylla (Pers.) Fernald published by Merritt Lyndon Fernald in 1917.[14][3] It is placed in the section Nuphar sect. Nuphar.[4] It is a parent species of the natural hybrid Nuphar × rubrodisca Morong.[4]

Etymology

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The specific epithet microphylla means small-leaved.[15][16]

Ecology

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Habitat

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It occurs in ponds,[2] marshes,[7] and lakes.[11]

Conservation

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It is endangered in the US-american states Pennsylvania,[8] Michigan,[7] Massachusetts,[17][10] and New Hampshire.[17] It is susceptible to pollution,[7] e.g., by herbicides meant to combat invasive weeds. It is also threatened by invasive plants.[10]

References

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  1. ^ "Nuphar microphylla". Global Biodiversity Information Facility. Retrieved 24 March 2021.
  2. ^ a b c 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
  3. ^ a b c Nuphar 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
  4. ^ a b c d 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
  5. ^ "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.)
  6. ^ a b c d e f 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
  7. ^ a b c d e 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
  8. ^ a b c PA 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
  9. ^ 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%20microphylla
  10. ^ a b c d 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
  11. ^ a b University of Michigan Herbarium. (n.d.). Nuphar microphylla (Pers.) Fernald. Michigan Flora. Retrieved January 30, 2025, from https://michiganflora.net/record/1727
  12. ^ 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/235397
  13. ^ Nymphaea microphylla Pers. (n.d.). International Plant Names Index. Retrieved January 30, 2025, from https://www.ipni.org/n/605628-1
  14. ^ Fernald, Merritt Lyndon. (1917). A Diagnostic Character of Nuphar microphyllum. Rhodora, 19, 111--111. https://www.biodiversitylibrary.org/part/188288
  15. ^ 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.php
  16. ^ Pilea microphylla. (n.d.). Missouri Botanical Garden. Retrieved January 30, 2025, from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b614
  17. ^ a b 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/


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