Black-eyed Susan
Thunbergia alata
family
Acanthaceae
origin
Exotic
declaration
Council Pest Vegetation (BCC Natural Asset Local Law)
Council Pest Vegetation (BCC Natural Asset Local Law)
Common names
Black eyed Susan, Black-eye Susan vine, Clockvine.
A long-lived vine growing up to 5 m in height. Its slender stems are green and hairy when young. Its paired leaves (2-8 cm long and 1-4.5 cm wide) are borne on narrowly winged stalks. Its tubular flowers (3-4 cm wide) are borne singly in the upper leaf forks on stalks 30-95 mm long. These flowers are usually orange or yellow with a black throat and have two leafy bracts at their bases. Its fruit has a rounded base (5-10 mm across) containing the seeds and an elongated beak (9-15 mm long).
Impact
Impact
Black-eyed Susan (Thunbergia alata) is regarded as an environmental weed in New South Wales and Queensland. It is also a potential environmental weed or "sleeper weed" in Western Australia and the Northern Territory. For more information see the Queensland Government's web page
Location
Location
Characteristics
Characteristics
Similar Species
Similar Species
Black-eyed Susan (Thunbergia alata) is regarded as an environmental weed in New South Wales and Queensland. It is also a potential environmental weed or "sleeper weed" in Western Australia and the Northern Territory. For more information see the Queensland Government's web page
