Long-leaf willow primrose (Ludwigia longifolia)

An aquatic shrub with yellow flowers, long-leaf willow primrose forms dense stands in slow-moving or still water. It has been recorded at several locations within Hornsby Shire, including along dam edges, roadside drainage ditches and creek lines, and as a weed in nursery stock. Notify Council if you see this plant in Hornsby Shire or see evidence of it being traded (including online), carried, grown, or released into the environment. Try to avoid long-leaf willow primrose from being introduced onto to your land. If you find it on your property, prevent it from spreading from your land where possible, especially into bushland, watercourses, dams, or spreading seeds or plant fragments down stormwater drains.

For information on the identification and control of long-leaf willow primrose, visit https://weeds.dpi.nsw.gov.au/Weeds/LongleafWillowPrimrose