Synonyms: Sollya APNI*
Description: Undershrubs or perennial climbers or scramblers or with twining branches up to a few metres long.
Leaves alternate, elliptic, lanceolate or linear-oblong, margins entire, flat or occasionally sinuate.
Flowers solitary or in terminal cymes, pedicellate, greenish yellow to cream or purple or rarely blue. Sepals free. Petals coherent to above the middle, spreading above. Stamens free; anthers oblong or ovate, shorter than the filaments. Ovary ± sessile, glabrous or pubescent, 1- or 2-locular.
Fruit a succulent or fleshy-fibrous oblong-ovoid berry; seeds ovoid, reniform or globose, often enveloped in a mucilaginous pulp.
Distribution and occurrence: World: c. 9 species, endemic Australia. Australia: all States except N.T.
Text by R. O. Makinson
Taxon concept:
Taxa not yet included in identification key
Billardiera fusiformis
| | Key to the species | |
| 1 | Inflorescences simple, corymbs with up to 10 flowers | Billardiera heterophylla |
| Inflorescences usually with 3 or fewer flowers, rarely corymbose | 2 |
| 2 | Inflorescences sessile, flowers not pendent, sepals thickened at the base | Billardiera versicolor |
| Inflorescence not sessile, flowers pendent, sepals not thickened at base
Back to 1 | 3 |
| 3 | Petals persisting, fruit unilocular with a thin spongy pericarp, ovate; seeds free | Billardiera macrantha |
| Petals only briefly cohering; fruit bilocular, cylindrical with a green-purple thick skin over a fleshy or pithy mesocarp enclosing seeds
Back to 2 | 4 |
| 4 | Petals green-yellow, sometimes with dark blue or purple contrast spots; fruit true berries with seeds difficult to separate from surrounding flesh | Billardiera mutabilis |
| Petals initially yellow, becoming pink mauve or red with age; fruit berry-like but with seeds in separate dry compartments
Back to 3 | 5 |
| 5 | Twinner with flowers noticably pendent on slender stalks, petals becoming tinged red with age | Billardiera rubens |
| Shrubs, mainly erect, eventually scandent; flowers barely nodding, becoming pink with age
Back to 4 | Billardiera scandens |
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