Water mimosa
Neptunia oleracea and N. plena
Biosecurity Queensland must be contacted within 24 hours of sighting, call: 13 25 23.
family
Fabaceae
origin
Exotic
declaration
Category 2, 3, 4, 5 Restricted Matter (Biosecurity Act 2014)
Cat 2 Must be reported to Biosecurity inspector or authorised person. Cat 3 Must not be distributed, Cat4 Must not be moved Cat 5 Must not be possessed or kept under your control.
Common names
Sensitive neptunia.
Biosecurity Queensland must be contacted within 24 hours 13 25 23., Biosecurity Queensland Must attend site before any control measure is administered, advice will be provided to the land holder at this time., Water mimosa is an aquatic floating perennial herb that attaches to the bank at the waters edge and sends down a taproot. Stems grow out over the water and form a spongy, fibrous covering between the nodes. Fibrous (adventitious) roots grow from the nodes. The rooted land form has smaller leaves and flowers, and has no spongy floating tissue.
Impact
Impact
Biosecurity Queensland Must attend site before any control measure is administered, advice will be provided to the land holder at this time, Water mimosa poses an extreme threat to Queensland€™s waterways and wetlands. It establishes from small plant pieces in water and from seed. Under favourable conditions, water mimosa grows out from the banks to form floating rafts of dense interwoven stems. These can be dislodged by water movement (especially during floods) and are soon replaced by more water mimosa. These floating rafts can restrict water flow in creeks, channels and drains. It can impede recreational water sports and boating access. The rafts are so dense they can reduce water quality by preventing light penetration and reducing oxygenation of water. This creates favourable habitat for mosquitoes and reduce fish activity, causing the death of native, submerged water plants and fish.
Location
Location
Characteristics
Characteristics
Similar Species
Similar Species
Biosecurity Queensland Must attend site before any control measure is administered, advice will be provided to the land holder at this time, Water mimosa poses an extreme threat to Queensland€™s waterways and wetlands. It establishes from small plant pieces in water and from seed. Under favourable conditions, water mimosa grows out from the banks to form floating rafts of dense interwoven stems. These can be dislodged by water movement (especially during floods) and are soon replaced by more water mimosa. These floating rafts can restrict water flow in creeks, channels and drains. It can impede recreational water sports and boating access. The rafts are so dense they can reduce water quality by preventing light penetration and reducing oxygenation of water. This creates favourable habitat for mosquitoes and reduce fish activity, causing the death of native, submerged water plants and fish.
