Erect annual, 10-50 cm tall. Stems sparsely to densely hairy, becoming almost glabrous to remaining densely hairy below, much-branched. Lvs sparsely to moderately hairy especially on margins and veins, petiolate, ovate to elliptic, acute to acuminate, obtuse to truncate at base, serrate, 1-6-(8) cm long; upper cauline lvs usually smaller, narrower and apetiolate. Capitula 3-7 mm diam., in loose clusters; peduncles 3-20 mm long, moderately to densely hairy and with glandular hairs. Involucral bracts foliaceous, deciduous or the outer persistent, sometimes with narrow membranous or somewhat laciniate margins. Outer receptacular scales entire or 3-fid; innermost scales usually entire, sometimes irregularly 2-3-fid or laciniate, deciduous or persistent. Ray florets usually 5; ligules white or tinged red, moderately to deeply 3-fid, 1-2.2 × 1-2.2 mm. Disc florets many, yellow to orange. Achenes of ray florets strongly flattened, glabrous or sparsely hairy, c. 1.5 mm long; pappus of c. 10 laciniate scales c. 1 mm long. Achenes of disc florets flattened or square in section, hairy especially on angles, 1.2-1.6 mm long; pappus scales 15-20, 1-1.5 mm long, lanceolate, laciniate and aristate.