Conostylis setigera, commonly known as bristly cottonhead, is a tufted perennial plant species in the family Haemodoraceae. It is endemic to the south-west of Western Australia. Plants grow to between 5 and 36 cm high and produce yellow flowers between August and November in the species' native range.^[2]

The species was first formally described by botanist Robert Brown in 1810 in Prodromus Florae Novae Hollandiae.^[1]

Two subspecies are recognised:

• Conostylis setigera subsp. dasys Hopper
• Conostylis setigera R.Br. subsp. setigera