Flora of North America species comparison

usually 1, ascending to erect, striate, glabrous proximal to heads.

mid and distal crowded, blades lanceolate (proximal) to ovate (distal), 30–110 × 15–40 mm, reduced distally, stiff, bases cuneate, margins involute to weakly revolute, finely ciliate, apices acuminate, faces glabrous or sparsely hairy.

1–10 mm, sparsely to moderately canescent;

bracts linear-lanceolate to broadly lanceolate.

3.2–6 mm.

4–13(–20);

corollas 4–7 mm, lobes 2–4.2 mm, 60–75% of limbs.

in 3–4 series, midveins often swollen, translucent apically, apices broadly rounded, glabrate.

(8–) 30–130(–200).

1.5–3.7 mm, 6–8-ribbed, sparsely strigose;

pappi: outer 0.4–1.1 mm, inner 4–7 mm.

2–7;

laminae (6–)8–12(–14.5) × 1–3 mm.

= 18.