great yellow pond-lily, wokas (Nuphar polysepala)

Nuphar polysepala is a species in the Nuphar genus. It is commonly known as great yellow pond-lily, wokas This name is accepted name for the species in the family Nymphaeaceae . It is in the section: Astylus . This species is found in Alaska, Aleutian Is., Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Northwest Territorie, Oregon, Utah, Washington, Wyoming, Yukon.