Annuals, usually narrowly taprooted. Stems usually 1, erect to decumbent-ascending. Leaves: basal and proximal cauline 15-40(-50) × 3-11(-14) mm. Involucres (2-)2.5-4.5 mm. Ray florets (7-)13-24; corolla laminae white, occasionally drying with bluish midstripe abaxially, (4-)6-10(-12) mm. Disc floret corollas 2-3 mm. Cypselae 1-1.6 × 0.6-0.8 mm, faces minutely longitudinally striate, otherwise nearly smooth, rarely papillate-pebbly, uniformly sparsely to densely glochidiate-hairy. 2n = 8.

Flowering Mar-May. Open sandy sites, less commonly in loam or clay, oak and oak-hickory woodlands, roadsides, pastures, grassland, also occasionally (Ark., Okla.) on rocky ridges, limestone outcrops, gravelly stream bottoms; 10-100 m; Ark., Kans., Mo., Okla., Tex.; Mexico (Nuevo León, Tamaulipas).