Flora of North America species comparison

yellowish green, moderately leafy at flowering, tomentum compact.

yellowish green, becoming whitish, leafy, compactly tomentose.

grayish green;

blades 1-nerved, linear, 10–20 × 0.5–1.5 mm, faces tomentulose to densely tomentose.

mostly greenish yellow;

blades 1-nerved, linear, 30–50 × 1–2 mm, faces ± tomentose.

11.2–16 mm.

10–14 mm.

9.8–11.8 mm, tubes puberulent or glabrous, lobes 0.7–0.9 mm, villous;

style appendages longer than stigmatic portions.

10–12 mm, tubes puberulent, lobes 1.7–2.3 mm, glabrous;

style appendages longer than stigmatic portions.

16–25, apices erect, acute to short-acuminate, outer abaxial faces tomentose or glabrous, inner often glabrous.

13–20 (in vertical ranks), apices erect, acuminate, abaxial faces glabrous or tomentose.

glabrous or densely hairy;

pappi 9.5–12 mm.

densely sericeous;

pappi 7–8 mm.

= 18.