Leaves: petioles 0-2 mm; blades 3-7 cm × 2-6 mm. Involucres 8-10 mm. Phyllaries grading into similar-sized peduncular bracts. Cypselae 2-3 mm. Flowering Apr-May. Flats, gravel banks, arroyos, pine-oak woodlands; 2000-2500 m; Ariz., N.Mex.; Mexico.