Flora of North America species comparison

petioles 20–50 mm;

blades rounded-deltate to ovate or lanceolate overall, (20–)30–70+ × (20–)30–60+ mm, (1–)2(–3)-pinnatisect, ultimate lobes obovate or lanceolate, 15–45+ × 10–25+ mm, bases truncate to cuneate, ultimate margins entire, sometimes ciliolate, apices rounded to acute or attenuate, faces usually glabrous, sometimes hirtellous.

sessile or petioles 10–50 mm (winged);

blades lance-elliptic to lance-oblong, 80–120(–250) × 30–100 mm (proximal usually with 1–2 lobes near bases), bases cuneate, margins laciniate to serrate, ciliate, apices acuminate, faces glabrous.

(10–)20–50(–100) mm.

(10–)30–70+ mm.

± campanulate, 5–7 × 3–4(–5) mm.

± hemispheric or broader, 6–10 × 18–25 mm.

0 or 3–5+;

laminae yellowish or whitish, 1–2(–3) mm.

6–11;

laminae yellow, 4–8 mm.

10–20(–30+);

corollas yellowish to whitish, 2–3 mm.

50–100+;

corollas yellow, 2.5–3.5 mm.

8–12, lanceolate to linear, 4–6 mm.

13–16+, oblong to lance-ovate, 6–10 mm.

of (7–)8(–10) linear bractlets 3–5 mm, ± appressed, margins ciliate, abaxial faces usually glabrous.

of 8–10 usually spreading, lance-linear to lanceolate, sometimes ± foliaceous bractlets or bracts 10–20(–75) mm, margins entire or incised, ciliate, abaxial faces ± hispid at bases.

usually borne singly, sometimes in ± corymbiform arrays.

in ± corymbiform arrays.

red-brown, outer weakly obcompressed, 7–15 mm, inner ± 4-angled, linear to linear-fusiform, 12–18 mm, margins not ciliate, apices ± attenuate, faces 2-grooved, often tuberculate-hispidulous;

pappi of (2–)3–4, erect to divergent, retrorsely barbed awns 2–4 mm.

olivaceous green, ± flattened, unequally 3–4-angled, cuneate, outer 5–6 mm, inner 6–7 mm, margins antrorsely to retrorsely barbed, apices truncate to concave, faces weakly striate, glabrous or sparsely puberulent;

pappi 0, or of (1–)3(–4) suberect, retrorsely barbed awns 2–4 mm.

= 24, 72.