Flora of North America species comparison

white, leafy, loosely tomentose.

greenish, usually leafy, compactly tomentose.

whitish;

blades 1-nerved, filiform, 15–45 × 1–2 mm, faces loosely tomentose.

yellowish green;

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

7.5–10.5 mm.

6.5–10 mm.

7–9.5 mm, tubes glabrous or puberulent, lobes 0.6–1 mm, glabrous;

style appendages equaling or shorter than stigmatic portions.

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

style appendages shorter than or equaling stigmatic portions.

15–17, apices erect, obtuse, outer abaxial faces densely tomentulose, inner glabrous.

11–20, apices erect, acute, glabrous.

densely hairy;

pappi 4.8–7.6 mm.

hairy (sometimes glabrous in Idaho populations);

pappi 4.2–7.6 mm.

= 18.

= 18 (as Chrysothamnus nauseosus subsp. consimilis).