Nuphar lutea
Notifiable Organism, Unwanted Organism, National Pest Plant Accord
yellow water lily, brandy bottle
- Scientific Name
- Nuphar lutea
- Origin
- Native to Eurasia and northern Africa
- Type
- Weed
- Plant Life-form Type
- Floating-leaved
- Taxonomy
- (L.) Sm.
- Presence
- Two field sites targeted for eradication, first record from Horseshoe Lake, Hawkes Bay in 1975
- Habitat
- Still and slow flowing water bodies
- pH range
- 6.8 - 7.0
- Hardness (ppm)
- 50 - 80
- Light
- Strong
- Height
- 100 - 300mm
- Difficulty
- Less Demanding
- Notes
- Problem in still water bodies, poor dispersal capacity has limited spread. Submerged leaves in rosettes are light green and thinly membranous and transparent deeply cordate 10 - 30cm long and wide. A young rhizome may live for a few years. The formation of floating leaves is inhibited by a poor planting medium. Requires good light.
- Propagation
- Rhizome fragments and seed
- Features
- Stout spongy, tuberous rhizome that is up to 10 cm across. The floating leaf is ovate, with entire leaf margins, a deep sinus, and up to 30 cm long. The submerged leaf is very thin and lettuce-like. Flower is golden yellow with 6 petals and up to 6 cm across with a strong alcoholic aroma. The flower is held above the water surface by a stout stalk.
- Source
- TIFBIS
- Regional
- Regional Pest Management Strategy: HKB, AUK.