Salmon River rabbitbrush

Chrysothamnus parryi (A. Gray) Greene subsp. salmonensis L. C. Anderson, Phytologia 38: 317, fig. 4. 1978

Plants 30–60 cm. Leaves widely spaced, green; blades 1-nerved, linear to narrowly oblanceolate, 30–50(–80) × 1–2(–3) mm, faces glabrous, viscidulous; distalmost overtopping arrays. Heads usually 4–8 in lax (much branched), racemiform to cymiform-paniculiform arrays. Involucres 10–12 mm. Phyllaries (11–)13–17(–19), chartaceous, outer herbaceous-tipped, apices erect, acuminate (glabrous, viscidulous). Florets (4–)5–6; corollas pale yellow, 7.5–10 mm, tubes distally puberulent, throats gradually dilated, lobes 1–1.5 mm. 2n = 18.

Flowering late summer–fall. Barren, rocky soils; 1400–1800 m; Idaho.

Variety salmonensis grows along the Middle Fork of the Salmon River and its tributaries.