Annual thunbergia

Thunbergia annua
Herb
Opposite
Simple
White
Green

Annual thunbergia is an erect, annual herb that can degrade the banks of creeks and rivers and threaten native vegetation. While it has not yet been found in Australia, it has the potential to be a major threat to tropical and subtropical areas if released here. Unlike many other species of thunbergia, annual thunbergia is not a climbing vine.

Annual thunbergia is a is a prohibited invasive plant under the Biosecurity Act 2014.

Common names 
Also known as: Annual thunbergia,
Family 
Acanthaceae
Deciduous 
No
Flowering time 
Unknown
Native/Exotic 
Exotic
Origin 
Native to arid parts of northern Africa,
Notifiable 
Yes
State declaration 
Category 1
Council declaration 
As per State Declaration
Known distribution 

Not yet been found in Australia

Habitat 

Prefers frost-free locations.

Habit 

Annual thunbergia is an erect annual herb

Could threaten remnant vegetation in wet tropics. Degrades banks of creeks and rivers.

Stem and leaves 

Leaves are smooth, arranged in opposite pairs along stem.

Flowers and fruits 

Flowers are white, about 2cm long, may have cream centre.

Reproduction and dispersal 

Reproduces from seed and root pieces .moving along riverbanks during floods, or in earth removed from infested sites for fill or other soil use.