Tufted, stoloniferous, glabrescent perennial, to c. 20 cm high. Basal leaves deeply pinnatisect or bi-pinnatisect, c. oblong in outline, 4–12 cm long, 6–20 mm wide, divided to the midrib, the segments typically 0.5–1 mm wide; scape leaves c. oblong, to 6 mm long, entire or toothed. Scapes unbranched; capitula 12–20 mm diam.; involucral bracts c. broadly elliptic to orbicular, 3–4.5 mm long; ray florets 40–70, 4–7 mm long, white; disc florets sterile. Cypsela body 1–1.5 mm long, with prominent marginal wings, pale brown, pubescent and conically raised at apex, the faces centrally ridged, smooth and glabrous; awns 7–12, subequal or unequal, stout, 0.5–2 mm long, minutely barbed apically, villous near base. Flowers Sep.–Dec.