Cassinia sifton, commonly known as sifton bush,[2] is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia and an introduced species in other places.

It is a multi-stemmed shrub with linear leaves, and more or less conical heads of 50 to 200 deep red to pale brown flowers.

It is sometimes confused with Cassinia arcuata and authorities differ on its distribution.

[2][3][4] Cassinia sifton was first formally described in 2017 by Anthony Edward Orchard in Australian Systematic Botany from specimens collected about 10 km (6.2 mi) east of Stockinbingal.

[3][5] It was previously included in C. arcuata Sifton bush is a pioneer plant, especially on poor soils, and often invades overgrazed pastures.