Annual herb, up to 300 mm high; delicate, white-woolly. Leaves alternate; blade small, elliptic to elliptic-ovate, or ovate, ± tapering at both ends, or sometimes base truncate to broadly rounded, apex mucronate, margins entire, pale green and glabrescent above; petiole filiform. Heads discoid, up to 3 mm long, solitary, subracemosely arranged on long, filiform peduncles. Involucral bracts 3-seriate, apex of bracts obtuse, generally emarginate, erose or rounded, white with purple blotch or rarely totally purple. Flowers: disc florets only, yellow, sometimes tipped pink; May, Jun., Sep. Fruit with cypsela oblong, hairy. Pappus of barbellate bristles.