Involucres 3-4 × 3-5 mm. Ray florets 5-13. Disc florets 6-15. Pappus scales 0.1-0.8 mm. 2n = 16.

Flowering Mar-Jul(-Nov). Open sites in sandy, gravelly, or rocky soils over limestone, granite, or sandstone, less commonly on clay, with juniper, oak, or pine, glades, tallgrass prairies; 0-500 m; Ark., Kans., Mo., Okla., Tex.; Mexico (Tamaulipas, disjunct southward to Hidalgo).