Nymphaeaceae
Nuphar polysepala

Yellow Pond Lily

Leaves arise directly from underwater root system and float or arise above water. Leaves 4–18 in. long, heart-shaped. Cup-shaped flowers float or rise above water, are about 4 in. across, yellow, often tinted green or red. Flower center includes large, bright yellow disk-like stigma surrounded by yellow or red-tinged stamens. Found in shallow ponds and slow streams usually 2–10 ft. deep at elevations below treeline.

  • Rarity: Common
  • Flowering Time: Mid Summer
  • Life Cycle: Perennial
  • Height:
  • Habitat: Lake/Pond
  • Found In: Olympic NP, Mt. Rainier NP, N Cascades NP, Crater Lake NP, Wallowas, Steens, Columbia Basin, West Gorge, East Gorge, Siskiyous
  • Native: Yes

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