Arrowhead

Sagittaria montevidensis

Arrowhead

Arrowhead

Legal Status: Unwanted Organism - DOC
Status in New Zealand: Established
Organism: Marine and freshwater plants

This plant is present in New Zealand, but in limited distribution.

Other common names

Sagittaria, Californian arrowhead

Synonyms

Sagittaria andina, Sagittaria multinervia, Sagittaria pugioniformis var. montevidensis

Description

Arrowhead is a perennial aquatic herb that grows in static or slow-moving shallow fresh water, such as drains and pond margins. It has a thick rootstock without creeping stems (unlike other sagittarias). Its large glossy arrow-shaped leaves are carried on stalks of up to 1 m above the water. Its flowers are composed of three large white petals with a purple blotch at the base.

Impact

Arrowhead is an invasive weed with the potential to block waterways.

What to do

Contact your regional council to determine the status of this species and responsibility for control and/or advice on control.

Useful Resources

Page last updated: 22 April 2016