On the New South Wales government web site the three names are mentioned. The first is under the section on weeds:
Cape ivy (Delairea odorata, formerly Senecio mikanioides )
Cape ivy is a non-woody vine with thin but slightly fleshy, glossy leaves with angular lobes. The flowers are yellow and daisy-like, but lacking conspicuous petals, sweet-scented, and are produced in winter or early spring. Seed is small, with a "parachute" of fine hairs to assist its dispersal.
Look-alikes:
Two species of weedy climbing groundsel occur in the region. Senecio tamoides is very similar to cape ivy, with smaller, slightly thicker angular leaves and much showier sweetly scented yellow flowers with long petals. Senecio angulatus is a more robust plant with stiff scrambling stems and smaller, much thicker, fleshier leaves and yellow petalled flowers.
You can see the photos here:
http://www.esc.nsw.gov.au/weeds/Sheets/vines/V%20Cape%20ivy.htm