This plant is a woody shrub with vining habit, close related to Vallaris glabra and Wrightia sp.
This plant was earlier named in honour of Frederick Adolf Heyne, a German botanist.
Stems are covered with a gray, spotted bark, emitting a white latex when wounded. White, fragrant, bowl-shaped flowers, 1 inch across, with 5 sepals. Fragrant flowers resemble cherry flowers. They have an intense, interesting fragrance. The smell is said to be close to that of Pandan leaves, a relative of Kewda, which is used to flavor rice in some South-East Asian countries. Interestingly, a study of the basmati/jasmine flavor molecule, 2-acetyl-1-pyrroline, 2AP for short, notes that 2AP is produced through almost the whole of basmati rice plant. It iss also found at very high levels in Pandan leaf, and in Bread flowers. Bread flower is an essential ingredient of the bunga rampai, the decorated arrangement of finely sliced, fragrant leaves used for Malay weddings. Bread flower vine can be trained as a compact bush and is good for container culture.
The plant can be trained into a nice small tree or trimmed into a shrub, but the best way is to let it go: the twisting branches form weird shapes. Slow growing plant, makes compact forms. The plant blooms profusely on and off during spring and summer. Relatively cold tolerant, will stand short period of cool weather. Attracts butterflies and hummingbirds.