Flora of North America species comparison

grayish to white, leafy, loosely tomentose.

greenish, usually leafy, compactly tomentose.

grayish green to white;

blades 1-nerved, narrowly linear, 10–50 × 1–1.5 mm, faces loosely tomentose.

yellowish green;

blades 1-nerved, filiform to linear, 20–50 × 0.8–1 mm, faces glabrate.

7–10.5 mm.

6.5–10 mm.

6.5–9 mm, tubes usually puberulent, rarely arachnose, lobes 1–2 mm, glabrous;

style appendages longer than stigmatic portions.

6–9 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous;

style appendages shorter than or equaling stigmatic portions.

10–18, apices erect, mostly obtuse, abaxial faces tomentose, sometimes sparingly.

11–20, apices erect, acute, glabrous.

densely hairy;

pappi 5.2–7.2 mm.

hairy (sometimes glabrous in Idaho populations);

pappi 4.2–7.6 mm.

= 18.

= 18 (as Chrysothamnus nauseosus subsp. consimilis).