Polygalaceae are represented in Tasmania by a few native species of
Comesperma (mostly shrubs, but C. volubile is an almost
leafless twiner). Also, a couple of species of Polygala have
been naturalised. The flowers are conspicuous and asymmetrical. The
Tasmanian species have five sepals - three small ones, and two large
ones similar in colour to the petals and forming wings on either side
of the flower. There are three petals.