Nuphar ulvacea

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Nuphar ulvacea
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nuphar
Species:
N. ulvacea
Binomial name
Nuphar ulvacea
(G.S.Mill. & Standl.) Standl. [1]
Synonyms [1]
  • Nuphar advena subsp. ulvacea (G.S.Mill. & Standl.) Padgett
  • Nuphar lutea subsp. ulvacea (G.S.Mill. & Standl.) Beal
  • Nymphaea ulvacea G.S.Mill. & Standl.

Nuphar ulvacea is a species of rhizomatous aquatic plant native to the US-American states Alabama and Florida. [1]

Contents

Description

Vegetative characteristics

Nuphar ulvacea is an aquatic plant with stout, 2-5 cm wide rhizomes with 11-13 mm long, and 8-9 mm wide leaf scars. The petiolate, lanceolate, glabrous floating leaves with a blunt apex are 115-165 mm long, and 54-66 mm wide. The glabrous, terete, smooth petiole is 45-70 cm long, and 7 mm wide. The very thin submerged leaves are 23-28 cm long, and 7-10 wide. [2]

Generative characteristics

The flowers, supported by long peduncles, extend above the water surface. [3] They are 15-18 mm long, and 20-23 mm wide. They have six sepals. The subglobose, prominently ribbed fruit bears 3.5-4 mm long, and 2.5 mm wide seeds. [2]

Reproduction

Generative reproduction

Flowering occurs from Spring to early Autumn. [4]

Taxonomy

Publication

It was first described as Nymphaea ulvacea G.S.Mill. & Standl. by Gerrit Smith Miller Jr. and Paul Carpenter Standley in 1912. Later, it was included in the genus Nuphar Sm. as Nuphar ulvacea (G.S.Mill. & Standl.) Standl. published by Paul Carpenter Standley in 1931. [1]

Type specimen

The type specimen was collected by A. H. Curtiss in a blackwater River near Milton, Florida, USA on the 14th of May 1898. [2]

Etymology

The specific epithet ulvacea references the genus of algae Ulva , as the submerged leaves of Nuphar ulvacea resemble it. [2]

Conservation

Its habitat is imperiled. [5]

Ecology

Habitat

It occurs in blackwater habitats, streams fed by springs, [4] [5] [2] and old, water-filled sand and gravel pits. [3]

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References

  1. 1 2 3 4 "Nuphar ulvacea (G.S.Mill. & Standl.) Standl". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 18 January 2024.
  2. 1 2 3 4 5 Miller, G. S., & Standley, P. C. (1912). The North American species of Nymphaea. Contributions From the United States National Herbarium, 16, 63–108. http://www.biodiversitylibrary.org/openurl?ctx_ver=Z39.88-2004&rft_id=http://www.biodiversitylibrary.org/page/371937&rft_val_fmt=info:ofi/fmt:kev:mtx:book&url_ver=z39.88-2004
  3. 1 2 Nuphar ulvacea - Species Page - APA: Alabama Plant Atlas. (n.d.). Retrieved January 18, 2024, from http://floraofalabama.org/Plant.aspx?id=2704
  4. 1 2 Nuphar ulvacea in Flora of North America @ efloras.org. (n.d.). Retrieved January 18, 2024, from http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500820
  5. 1 2 Nuphar ulvacea Aquatic Vegetation. (n.d.). NatureServe. Retrieved January 18, 2024, from https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.683775/Nuphar_ulvacea_Aquatic_Vegetation