| Nuphar oguraensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nuphar |
| Section: | Nuphar sect. Nuphar |
| Species: | N. oguraensis |
| Binomial name | |
| Nuphar oguraensis Miki [1] | |
 | |
| Nuphar oguraensis is endemic to Japan [1] | |
| Synonyms [1] | |
| |
Nuphar oguraensis is a species of rhizomatous aquatic plant endemic to Japan. [1]
The petiolate, green, ovate floating leaves are 7.5-11.5 cm long, and 6-9 cm wide. The petiole is 1-3 mm wide. [2] The petiole is semi-hollow. [3]
The flowers are 1.7-2.5 cm wide. The 2.5-3 cm long, and 1.5-2 cm wide fruit bears brown, 3.5-4 mm long, and 2.5 mm wide seeds. [2]
Flowering occurs from June to October. [2]
It was first described by Shigeru Miki in 1934. [1]
The lectotype is an illustration of this species in the original publication by Shigeru Miki. [2] [4]
It has been speculated to be of hybrid origin involving Nuphar pumila and Nuphar japonica . [2]
It is threatened by urbanisation and land development. It is regarded as a vulnerable species. [2]
It occurs in rivers, lakes, ponds, and ditches. [2]
Nuphar is a genus of aquatic plants in the family Nymphaeaceae, with a temperate to subarctic Northern Hemisphere distribution. Common names include water-lily, pond-lily, alligator-bonnet or bonnet lily, and spatterdock.
Nuphar lutea, the yellow water-lily, brandy-bottle, or spadderdock, is an aquatic plant of the family Nymphaeaceae, native to northern temperate and some subtropical regions of Europe, northwest Africa, and western Asia. This species was used as a food source and in medicinal practices from prehistoric times with potential research and medical applications going forward.
Nymphaea macrosperma is an annual or perennial, aquatic, rhizomatous herb in the family Nymphaeaceae native to Australia and New Guinea.
Nymphaea ondinea is an aquatic plant in the family Nymphaeaceae native to northwestern Australia.
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 atrans is a species of waterlily is endemic to Queensland, Australia.
Nymphaea kakaduensis is a species of waterlily endemic to the Northern Territory, Australia.
Barclaya longifolia is a species of perennial aquatic plant native to the region of Indo-China to Northwest Peninsular Malaysia.
Barclaya kunstleri is a species of aquatic plant native to Peninsular Malaysia, and Singapore. It is disputed. By some, it is treated as synonym of Barclaya motleyi, but by others it is regarded as a separate species.
Nuphar ulvacea is a species of rhizomatous aquatic plant native to the US-American states Alabama and Florida.
Nuphar submersa is a species of rhizomatous aquatic plant endemic to Japan.
Nuphar ozarkana is a species of aquatic plant native to the US-American states Arkansas, Missouri, and Oklahoma.
Nuphar saikokuensis is a species of rhizomatous aquatic plant endemic to Japan.
Nuphar orbiculata is a species of rhizomatous aquatic plant native to the US-American states Alabama, Florida, and Georgia.
Nuphar × saijoensis is a species of rhizomatous aquatic plant endemic to Japan. It is a natural hybrid of Nuphar japonica and Nuphar pumila, or Nuphar japonica and Nuphar pumila subsp. oguraensis.
Nuphar × rubrodisca is a species of rhizomatous aquatic plant native to Canada and the USA. It is a natural hybrid of Nuphar variegata and Nuphar microphylla.
Nymphaea pygmaea is a controversial species of perennial, aquatic herb in the family Nymphaeaceae native to Asia.
Nuphar pumila subsp. sinensis is a subspecies of Nuphar pumila native to China.
Nuphar sect. Astylus is a section within the genus Nuphar native to North America.
Nuphar sect. Nuphar is a section within the genus Nuphar native to Eurasia, in addition to a single north American species Nuphar microphylla.