Water Soldier

Also known as:
Crabs Claw
Family:
Hydrocharitaceae
Origin:
Europe

General description

Perennial emergent bottom-rooted aquatic. Grows submerged in winter, floats on surface over summer. Deep green, sharply pointed, brittle leaves form rosette resembling a pineapple. Delicate white flowers (Jan) 3 petals; sheath at top of flower resembles crab’s claw.

Still freshwater: ponds, ditches, sheltered backwaters.

Seed spread by water. Spreads locally by runners.

Dense vegetation blocks waterways impedes drainage, disrupts recreation, chokes hydro turbines. Out-competes native species.

Site management

NOTIFIABLE ORGANISM. Report immediately to ARC Biosecurity staff ph 09 366 2000 or biosecurity@arc.govt.nz Plant not known in NZ

Recommended approaches

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

Search tags

RPMS status

Unwanted Organism - nationwide
water soldier - Main species image