Flora of North America species comparison

sessile or petioles (± winged) 5–15(–35+) mm;

blades ± elliptic to lanceolate, (20–)40–100(–200+) × 10–30(–70) mm, sometimes laciniately 1-pinnatisect with 1–4+ lobes near bases, bases cuneate, margins entire or dentate to serrate, usually ciliate, apices attenuate, faces glabrous or hirtellous.

petioles 5–25 mm;

blades rounded-deltate overall, 25–90+ × 15–35+ mm, (1–)2(–3)-pinnatisect, ultimate lobes lance-rhombic or ovate to lanceolate, 15–30(–50+) × 5–15(–30+) mm, bases truncate to cuneate, ultimate margins entire or ± serrate to incised, usually ciliolate, apices obtuse to acuminate, faces glabrous.

10–35(–80) mm.

(10–)30–50(–150+) mm.

campanulate to hemispheric or broader, (4–)6–12 × (3–)6–9(–15+) mm.

± campanulate, 2.5–5+ × 1.5–3(–4) mm.

usually 0, sometimes 1–5+;

laminae yellowish, 4–8 mm.

0 or 1(–5+);

laminae whitish, 1–3(–7) mm.

(5–)20–40(–60+);

corollas pale yellow to orange, 2–3 mm (± abruptly ampliate, anthers usually dark, blackish).

13–25+;

corollas yellowish, 1–2 mm.

(6–)8(–9), elliptic to oblong or ovate, (4–)5–6(–12) mm.

8–13+, lanceolate, (3–)4–6+ mm.

of 2–6+ spreading or ascending, lanceolate, linear, oblanceolate, oblong, or spatulate, ± foliaceous bractlets or bracts 10–25(–35+) mm, margins (entire or serrate) usually ciliate, abaxial faces hispidulous near bases, distally glabrous.

of 8–13 usually spreading, narrowly lanceolate, oblanceolate, or subulate to linear bractlets 2–5 mm, margins entire, usually ciliate, abaxial faces usually glabrous.

borne singly or in 2s or 3s.

usually borne singly, sometimes in open, ± corymbiform arrays.

blackish to purplish or brown, usually (at least inner) ± 4-angled, usually cuneate to linear, sometimes ± obpyramidal, outer (3–)4–7 mm, inner (4–)5–8 mm, margins proximally antrorsely to patently, distally retrorsely, barbed, apices ± truncate to concave, faces usually strongly 1-nerved, usually tuberculate, glabrous or setulose;

pappi 0, or of (1–)2–4(–6), ± erect to spreading, antrorsely or retrorsely barbed awns (0.2–)2–5 mm.

outer red-brown, obcompressed, cuneate, 6–7 mm, margins not ciliate, apices truncate, faces 2-grooved, antrorsely tuberculate-hirtellous;

inner dark brown to blackish, ± equally 4-angled, linear-fusiform, 10–14 mm, margins not ciliate, apices ± attenuate, faces glabrous;

pappi of 2(–3), erect, retrorsely barbed awns (1–)2–4 mm.

= 48.