Nuphar ulvacea is a species of rhizomatous aquatic plant native to the US-American states Alabama and Florida.[1]
| Nuphar ulvacea | |
|---|---|
Scientific classification 
| |
| 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] | |
| |
Description edit
Vegetative characteristics edit
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 edit
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 edit
Generative reproduction edit
Flowering occurs from Spring to early Autumn.[4]
Taxonomy edit
Publication edit
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 edit
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 edit
The specific epithet ulvacea references the genus of algae Ulva, as the submerged leaves of Nuphar ulvacea resemble it.[2]
Conservation edit
Its habitat is imperiled.[5]
Ecology edit
Habitat edit
It occurs in blackwater habitats, streams fed by springs,[4][5][2] and old, water-filled sand and gravel pits.[3]
References edit
- ^ a b c d "Nuphar ulvacea (G.S.Mill. & Standl.) Standl". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 18 January 2024.
- ^ a b c d e 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
- ^ a b Nuphar ulvacea - Species Page - APA: Alabama Plant Atlas. (n.d.). Retrieved January 18, 2024, from http://floraofalabama.org/Plant.aspx?id=2704
- ^ a b 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
- ^ a b 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