Nuphar × fluminalis
Species of perennial aquatic plant
From Wikipedia, the free encyclopedia
Nuphar × fluminalis is a species of rhizomatous aquatic plant endemic to Japan. It is a natural hybrid of Nuphar japonica and Nuphar submersa.[1]
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| Nuphar × fluminalis | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nuphar |
| Section: | Nuphar sect. Nuphar |
| Species: | N. × fluminalis |
| Binomial name | |
| Nuphar × fluminalis | |
| |
| Nuphar × fluminalis is endemic to Japan[1] | |
Description
Vegetative characteristics
Nuphar × fluminalis has an intermediate appearance and falls between Nuphar japonica and Nuphar submersa. The submerged leaves are ovate.[2]
Generative characteristics
The filaments are recurved. The anthers display orange-red colouration. The stigmatic disk, as well as the fruit, also display orange-red colouration.[2]
Reproduction
Generative reproduction
Sexual reproduction occurs within this hybrid.[2]
Taxonomy
Publication
It was first described by Takashi Shiga and Yasuro Kadono in 2007.[1]
Etymology
The nothospecific epithet fluminalis, from the Latin fluminalis, means stream or river.[3]
Conservation
It is critically endangered. Only four populations are known.[4]
Ecology
Habitat
It occurs in streams and rivers.[2]