Evergreen twining shrub. Branches not angled. Leaves opposite. Leaflets 3, ovate, wavy-edged. Flower clusters terminal. Sepal lobes to 2.5 mm long. Flowers white, on long stalks; tube to 5 mm long, with up to 6 lobes, each to 1 cm long.
J. dallachii F. Muell., Coastal Jasmine, from Queensland and New South Wales is also white-flowered with leaves of 3 leaflets, and is occasionally sold; it has a flower tube less than 1.3 cm long. [J. didymum G. Forst. vars].
J. lineare R. Br., Desert Jasmine, which occurs in most Australian states, has more or less linear leaflets.
Source: (2002). Oleaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.