Annual forb to 50cm tall. Basal leaves flat, 2-4.5cm long, soon withering. Stem leaves alternating up the stems, flat, 1.5-5cm long, 2-10mm wide, sparsely hairy, tips toothed or lobed. Flower heads with 12-20 white to mauve 'petals' and yellow centres, many flowers in open groups at the tops of the stems. Burr hairy, with 12-18 spines.
PlantNET description with line drawings of burr and plant, and photos of dried plants: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Calotis~plumulifera