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)

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).

Leaf arrangement:Simple
Leaf form:Opposite
Yellow
Green

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

Control Methods