Flora of North America species comparison

yellowish green, leafy at flowering, densely tomentose.

yellowish green, moderately leafy to nearly leafless, compact tomentose.

yellowish green;

blades 1-nerved, linear, 30–50 × 1–1.5 mm, faces glabrate.

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces tomentulose.

10–12.5 mm.

7–8.5 mm.

9.5–11 mm, tubes mostly glabrous, lobes 0.7–1 mm, glabrous or villous;

style appendages longer than stigmatic portions.

6–7.5 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous;

style appendages shorter than stigmatic portions.

13–19 (outer weakly keeled), apices erect, acute (outer) or acute to obtuse (inner), outer abaxial faces scurfy-tomentulose, inner glabrous.

16–26 (in vertical ranks), apices recurved, acuminate, abaxial faces tomentose to glabrate, glutinous.

usually glabrous, sometimes hairy;

pappi 9–10 mm.

hairy;

pappi 4.5–6.7 mm.

= 18.