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Plant Form: Perennial aquatic herb.
Size: Up to 80cm tall above water.
Leaves: Submerged leaves are translucent and strap-like. Emerged leaves are usually lance-shaped up to 28 cm long but can be narrow and grass like if subject to disturbance.
Flowers: Whorled or coiled, 3 cm diameter with 3 white petals and a yellow centre.
Fruit and Seeds: In clusters with flattened and winged segments. 1 seed in each segment.
Habitat: Irrigation channels, drains, shallow creeks, wetlands.
Distinguishing Features: Similar to Alisma lanceolota but submerged leaves are different. Similar to other Sagittaria speces, but generally with lance-shaped leaves.
Impacts: Blocks water flow, outcompetes native vegetation.