Annual herb, up to 400 mm high, erect. Leaves alternate; blade pinnatipartite to bipinnatipartite, 15-35 mm long, lobes 2-6 mm long, mucronate, subsucculent. Heads radiate, solitary, terminal, peduncle long, nude. Involucral bracts in several series, imbricate, margins often brown; inner bracts with broad, rounded, membranous apex. Receptacle paleate. Flowers: ray florets yellow on both sides or often reddish below; disc florets yellow, rarely white; Jul.-Jun. Fruit with cypsela curved almost 90°, ribbed, glabrous, basal tuft of hairs absent. Pappus biseriate, outer row of 5 broad, membranous scales and inner row of narrow, linear scales.
Annual herb, 30-400 mm tall. Leaves pinnatipartite to bipinnatipartite, lobes 2-6 mm long. Scape nude. Pappus biseriate. Flowers with yellow rays, often reddish below, disc yellow, rarely white.