Swainsona adenophylla

About

Swainsona adenophylla, commonly known as violet swainson-pea or violet Darling pea, is a species of flowering plant in the family Fabaceae and is endemic to arid areas of central Australia. It is a slender, erect or spreading perennial herb with imparipinnate leaves with three to nine linear to narrowly egg-shaped leaflets, and racemes of pink or purplish flowers in racemes of ten to twenty.

Summary from Wikipedia