About Billardiera mutabilis Salisb.
Billardiera mutabilis Salisb. is a slender climbing or twining plant with silky-hairy new stems. Its adult leaves are mostly narrowly elliptic, measuring 18 to 80 mm (0.71 to 3.15 in) long and 3 to 18 mm (0.12 to 0.71 in) wide, and grow from a petiole 2 to 4 mm (0.079 to 0.157 in) long. Flowers are usually borne singly in upper leaf axils or at the ends of branches, on a slender, hanging peduncle 12 to 45 mm (0.47 to 1.77 in) long. The sepals are lance-shaped and 4 to 9 mm (0.16 to 0.35 in) long. Petals are 12 to 23 mm (0.47 to 0.91 in) long, greenish-yellow, and develop a navy blue tinge as they age. Petals are joined at the base to form a bell-shaped tube, with spreading lobes that do not curve backwards. Flowering occurs mainly from September to January. The mature fruit is a hairless green berry 10 to 20 mm (0.39 to 0.79 in) long that holds many seeds. This species is similar to Billardiera scandens, differing in that B. scandens produces hairy fruit. Commonly called climbing apple berry, this species grows in heathland, woodland, and forest. It occurs on the coasts and tablelands of New South Wales and the Australian Capital Territory, south of approximately Kiama, through southern Victoria, and along the coasts of Tasmania.
