Sand rabbitbrush

Chrysothamnus nauseosus (Pallas ex Pursh) Britton subsp. arenarius L. C. Anderson, Phytologia 38: 311, fig. 1. 1978; C. nauseosus var. arenarius (L. C. Anderson) S. L. Welsh

Plants 70–120 cm. Stems grayish green, moderately leafy, moderately compactly tomentose . Leaves grayish green; blades 1-nerved, linear, 40–75 × 0.8–1.1 mm, faces tomentose. Involucres 16–19 mm. Phyllaries (19–)22–27 (in strongly vertical ranks), apices ± recurved, cuspidate-aristate, abaxial faces glabrous or glabrescent. Corollas 12–14.2 mm, tubes glabrous, lobes 1.2–2 mm, glabrous; style appendages longer than stigmatic portions. Cypselae hairy; pappi 9.6–12.7 mm. 2n = 18.

Flowering late summer–fall. Sandhills and sandstone cliffs; 1500–2000 m; Ariz., N.Mex., Utah.