Mexican Water Lily

Also known as:
Banana Waterlily
Family:
Nymphaeaceae
Origin:
Europe/North America

General description

Bottom-rooted herb. Large round, long stalked leaves on surface. Has erect rhizomes, star-shaped yellow flowers, clustered tubers.

Still freshwater: ponds, still parts of streams.

Rhizomes, tubers and by seed. Deliberate plantings.

Spreads over large area, displacing & shading out native vegetation.

Site management

Always begin treatment at top of catchment & work downstream. Follow up required.

Recommended approaches

1. Mechanical removal.
2. Spray emergent foliage (300ml glyphosate/10L, glyphosate formulation approved for use over water). Repeat as necessary.

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

Similar species

marshwort
Nymphoides geminata

Marshwort has thin stolons either on top of substrate or beneath water surface. It lacks large rhizomes.

fringed water lily
Nymphoides peltata

Fringed water lily has thin stolons either on top of substrate or beneath water surface. It lacks large rhizomes. The petals have fringed edges.

water poppy
Hydrocleys nymphoides

Water poppy has an inflated mid-vein on the underside of the leaves.

yellow water lily
Nuphar lutea

Yellow water lily has less rounded leaves and larger spongy rhizomes.

common water lily
Nymphaea alba

Common water lily has horizontal rhizomes whereas Mexican water lily has vertical ones.

Search tags

RPMS status

Surveillance - Whole Region
National Pest Plant Accord species - nationwide
Mexican water lily - Main species image