Calostemma purpureum

About

Calostemma purpureum, the garland lily, is a long-lived perennial flowering plant that is native to South Australia, Victoria and New South Wales. Flowers may be cream, yellow, pink or purple. Related to the common daffodil, garland lilies were once common in large colonies in grassy areas, in particular the plain on which the city of Adelaide now stands. Due to urbanisation and grazing, the garland lily is now rare, only occurring in small pockets in parks on the outskirts of the city.

Summary from Wikipedia