Nuphar advena | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Order: | Nymphaeales |
Family: | Nymphaeaceae |
Genus: | Nuphar |
Section: | Nuphar sect. Astylus |
Species: | N. advena |
Binomial name | |
Nuphar advena | |
Synonyms [2] | |
List
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Nuphar advena (spatterdock or cow lily or yellow pond-lily) is a species of Nuphar native throughout the eastern United States and in some parts of Canada, such as Nova Scotia, [3] [4] as well as Mexico and Cuba. [5] [2] It is locally naturalized in Britain. [5]
Nuphar advena is a perennial, aquatic herb [5] with 5–10 cm wide, [3] spongy rhizomes. [6] The leaves are emergent, [7] [8] floating, or submersed, [8] but most leaves are emergent. [9] The submerged leaves are 12–40 cm long, and 7–30 cm wide. [10]
The protogynous, fragrant, nectariferous, [11] solitary, [8] [6] yellow-green, [8] up to 4 cm wide flowers [3] float on the water surface, or extend beyond it. [8] The flowers have six sepals. [9] [3] The gynoecium consists of 9–23 carpels. [3] The fleshy, [10] ovoid to broadly obovate, [9] ribbed, green, 2–5 cm long, and 2–5 cm wide fruit [3] bears 186–353 [11] 3-6 mm long seeds. [3]
It was first published as Nymphaea advenaAiton by William Aiton in 1789. [12] [2] [13] It was placed into the genus NupharSm. as Nuphar advena(Aiton) W.T.Aiton published by William Townsend Aiton in 1811. [14] [15] It is placed in the section Nuphar sect. Astylus. [16]
In the United Kingdom, it has hybridised with Nuphar lutea, resulting in the hybrid Nuphar × porphyranthera. [9] [17]
The specific epithet advena means immigrant, [18] [10] outsider, foreigner, or stranger. [19]
The chromosome count is 2n = 34. [20] The chloroplast genome is 160866 bp long. [21]
It is native to Canada, the United States, Mexico, and Cuba. [2] It has been introduced to the United Kingdom. [5]
The NatureServe conservation status is T5 Secure. [1]
It occurs in ponds, lakes, streams, rivers, [7] marshes, and swamps. [8]
The seeds are eaten by turtles and waterfowl. [8]
The flowers are pollinated by sweat bees, syrphid flies, and leaf beetles. [11]
It is cultivated as an ornamental plant. [22]
It is used as food. [23] [24] [10] The seeds are eaten or ground to flour. [23] [24]