Annuals, 10-45 cm; vestiture hispidulo-puberulent, stem hairs spreading to deflexed, 0.2-0.6 mm. Phyllary apices acute. Ray florets 20-41. Disc florets: corolla bases not conspicuously swollen and indurate. Cypselae: hairs apically straight; pappi minutely ciliate crowns 0.1-0.2 mm or absent or nearly so. 2n = 8.
