Western yellow pond-lily (Nuphar polysepala)

Western yellow pond-lily, a reference photo — Photo: NPS/Diane Renkin · Public domain

Nuphar polysepala, also known as the great yellow pond-lily, wokas, or wocus, is a perennial, rhizomatous, aquatic herb in the genus Nuphar. It has floating green leaves and yellow flowers.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Western yellow pond-lily being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Nuphar advena
Nuphar variegata
Nuphar japonica
Nuphar ulvacea
Nuphar lutea

Classification

Kingdom: Plantae
Phylum: Tracheophyta
Class: Magnoliopsida
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nuphar
Species: Nuphar polysepala

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