Nymphoides peltata

Unwanted Organism, National Pest Plant Accord

• Fringed water lily

• Scientific Name: Nymphoides peltata
• Origin: Europe and Asia
• Type: Weed
• Plant Life-form Type: Floating-leaved
• Taxonomy: (Gmel) Kuntze
• Presence: Nationally eradicated, first record from Whangaparaoa, Auckland in 1988
• Habitat: Only known from a farm dam and ornamental ponds, but also grows in slow flowing waters overseas
• Notes: Problem weed in still and flowing water bodies, fortunately detected and eradicated before establishing as a naturalised species.
• Propagation: Vegetative spread by stoloniferous growth and by floating seeds which are fringed with many bristles. Huge potential for spread because seeds are adapted for water bird dispersal. Also deliberate plantings
• Features: Underwater stem creeping or floating near the surface with leaves and roots at each node. Leaves are almost round, with a scalloped margin, deep sinus, and up to 10 cm across. Green on upperside of leaf with purple blotches. Flowers are golden with 5 petals and solid marginal wings.
• Source: TIFBIS
• Regional: Regional Pest Management Strategy: NTL, AUK, WKO.