Pest Photo

John Wrigley, Australian National Botanic Gardens,

Ottelia; Duck-lettuce

Ottelia alismoides

Ottelia; Duck-lettuce (Ottelia alismoides) is an invasive plant of Tropical Asia and Australia. It was first detected in Louisiana in 1969.

This water weed can be invasive and form floating masses.

For more information about this plant pest, see the CABI data sheet.