Leaf blades or leaflets mostly 2-5 × 1-2 cm. Disc corollas 4-5 mm. Cypselae 3-6 mm; pappus scales 0.3-2 mm. 2n = 20. Flowering year round, mostly summer-fall. Open, often disturbed sites; 0-900 m; Tex.; Mexico (Chihuahua, Coahuila, Nuevo León, Tamaulipas).