Indigofera australis

Indigofera australis, the Australian indigo or Austral indigo, is an attractive species of leguminous shrub in the genus Indigofera (family Fabaceae). The genus name Indigofera is Neo-Latin for "bearing Indigo" (Indigo is a purple dye originally obtained from some Indigofera species). The specific epithet australis, from the Latin, means not “Australian” but "southern", referring to the geographical distribution of the species....read more on Wikipedia.