Annuals, 3-15(-35+) cm. Leaf blades 10-25(-35+) overall, lobes or leaflets 0 or 3-5, linear to filiform, 10-25(-35+) × 0.5-1.5+ mm. Heads borne ± singly. Peduncles 10-50+ mm. Involucres 9-12+ × 1-2 mm. Ray florets 0-1+; laminae ochroleucous to yellowish, ± oblong, 1.5-2.5 mm. Disc florets 5-6+; corollas 2.5-3.5 mm. Cypselae 7 mm; pappi of 2 ± subulate-aristate scales 4-5+ mm plus 2 distinct, oblong to ovate, ± erose scales 1.5-2.5 mm. 2n = 24. Flowering Aug-Sep. Disturbed sites, moist soils in meadows, juniper woodlands, pine forests; 1500-2600 m; Ariz., N.Mex., Tex.; Mexico.