Nuphar subintegerrima

Nuphar subintegerrima is a species of rhizomatous aquatic plant endemic to Japan.

Vegetative characteristics
Nuphar subintegerrima has emerging or floating leaves. The leaves are 5-11 cm long, and 4-8.5 cm wide.

Generative characteristics
The pedunculate, solitary, yellow flower extends above the water surface. Ripe fruit detach from the plants.

Vegetative reproduction
It reproduces vegetatively through its rhizomes.

Generative reproduction
It reproduces sexually. Flowering occurs from May to November.

Publication
It was first described by Robert Caspary as the variety Nuphar japonica var. subintegerrima Casp. in 1866. It was elevated to the species Nuphar subintegerrima (Casp.) Makino by Tomitaro Makino in 1910.

Habitat
It occurs in streams, bogs and irrigation ponds.

Pollination
It is pollinated by the fly species Notiphila maritima.

Herbivory
The larvae of the moth species Neoschoenobia testacealis feed on leaves and flower stalks of Nuphar subintegerrima.