| Nymphaea siamensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nymphaea |
| Subgenus: | Nymphaea subg. Brachyceras |
| Species: | N. siamensis |
| Binomial name | |
| Nymphaea siamensis Puripany. [1] | |
 | |
| Nymphaea siamensis is endemic to Thailand [1] | |
Nymphaea siamensis is a species of waterlily endemic to Thailand. [1]
Nymphaea siamensis has ovoid, erect, 15 cm long and 5 cm wide rhizomes with oval bulblets. The broadly elliptic to ovate, 25 cm long, and 23 cm wide leaves have a subcoriaceous texture. The green adaxial surface can display reddish brown spotting. The purplish red abaxial surface features brown spotting. The brown, glabrous, 4 mm wide petioles have four primary air canals. [2]
The sterile, 8–12 cm wide flowers float on the water surface. They are attached to reddish brown, glabrous, 6.5 mm wide peduncles with six primary central and twelve secondary peripheral air canals. The 5-8 green, elliptic-ovate, 5 cm long, and 1.5 cm wide sepals have a rounded to acute apex. The 80-90 petals display pinkish white, and green colouration. Reproductive structures are absent. [2] The flowers are said to resemble Chrysanthemum flowers. [3]
The clonal species Nymphaea siamensis reproduces exclusively through the formation of bulblets on the rhizome, as well as occasional tubiferous flowers. [2]
Sexual reproduction is impossible in this species. The flowers are sterile and do not produce ovaries. [4] [2]
It was first described by Puripany. in 2014. [1]
The type specimen was collected by W.La-ongsri in Chiang Mai, Queen Sirikit Botanic Garden, Thailand on the 20th of August 2000. [5] [2]
It appears to be placed in Nymphaea subgenus Brachyceras, [2] however the absence of fertile flowers make it difficult to place. [4]
The specific epithet siamensis refers to Siam, a former name of Thailand. [6]
It is easily cultivated. [2]
Nymphaea is a genus of hardy and tender aquatic plants in the family Nymphaeaceae. The genus has a cosmopolitan distribution. Many species are cultivated as ornamental plants, and many cultivars have been bred. Some taxa occur as introduced species where they are not native, and some are weeds. Plants of the genus are known commonly as water lilies, or waterlilies in the United Kingdom. The genus name is from the Greek νυμφαία, nymphaia and the Latin nymphaea, which means "water lily" and were inspired by the nymphs of Greek and Latin mythology.
Nymphaea leibergii, also known as the dwarf waterlily and Leiberg's waterlily, is a perennial emergent aquatic plant belonging to the genus Nymphaea. It can be found across northern North America in ponds and slow moving streams. Populations of this plant are infrequent throughout its range, and it is protected as a state threatened plant in Maine, Michigan, and Minnesota.
Nymphaea thermarum, also known as Pygmy Rwandan water lily, is a species of water lily that is endemic to Rwanda. Once thought to be extinct in the wild, all wild plants were believed to be lost due to destruction of its native habitat, but it was thought to be saved from extinction when it was grown from seed at the Royal Botanic Gardens, Kew in 2009. A previously-unknown wild population was discovered in 2023.
Nymphaea gigantea, commonly known as the giant waterlily or blue waterlily, is a perennial, herbaceous plant in the family Nymphaeaceae which is native to parts of northern and eastern Australia, and it has been widely cultivated elsewhere. It is an aquatic plant whose natural habitat is permanent and semi-permanent still water bodies
Nymphaea potamophila is a species of waterlily native to the region spanning from Venezuela to northern Brazil. Additionally, it has been reported to occur in Colombia.
Nymphaea belophylla is a species of waterlily native to Bolivia, Brazil and Venezuela.
Nymphaea caatingae is a species of waterlily endemic to Northeast Brazil.
Nymphaea conardii is a species of waterlily native to the region spanning from Southern Mexico to tropical South America.
Nymphaea lingulata is a species of waterlily native to Bolivia, Brazil, and Paraguay.
Nymphaea novogranatensis is a species of waterlily native to Colombia, Mexico, and Venezuela.
Nymphaea vaporalis is a species of waterlily endemic to Queensland, Australia.
Nymphaea × daubenyana is a species of waterlily endemic to Chad, but has been introduced to Florida, USA. It is a natural hybrid of Nymphaea micrantha and Nymphaea nouchali var. caerulea.
Nymphaea georginae is a species of waterlily native to the Northern Territory, and the state of Queensland, Australia.
Nymphaea gracilis is a species of waterlily endemic to Mexico. It is the only species of its genus which is endemic to Mexico.
Nymphaea jacobsii is a species of waterlily endemic to Queensland, Australia.
Nymphaea kakaduensis is a species of waterlily endemic to the Northern Territory, Australia.
Nymphaea loriana is a species of waterlily endemic to Manitoba, and Saskatchewan, Canada.
Nymphaea manipurensis is a species of waterlily endemic to Assam, India.
Nymphaea rubra is a species of waterlily native to the region spanning from Sri Lanka and northeastern India to western and central Malesia. Additionally, it has been introduced to regions such as Southeast China, Cuba, Guyana, Hungary, and Suriname.
Nymphaea subg. Brachyceras is a subgenus of the genus Nymphaea.