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 10–50 mm;

blades ± deltate to ovate overall, 50–100(–150+) × (15–)30–80(–120+) mm, usually laciniately 1-pinnatisect or 3–5-foliolate, primary lobes or leaflets ± lanceolate, 20–80(–120) × 10–25(–40+) mm, blades rarely 2–3-pinnatisect, bases cuneate, ultimate margins dentate to serrate, little, if at all, ciliate, apices acute to attenuate, faces glabrous or ± hispidulous.

10–35(–80) mm.

(10–)40–150+ mm.

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

hemispheric or broader, 5–6 × 8–10 mm.

usually 0, sometimes 1–5+;

laminae yellowish, 4–8 mm.

0 or 3–5+;

laminae pale yellow, 2.5–3.5 mm.

(5–)20–40(–60+);

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

40–60(–150+);

corollas yellow, 2.5–3.5 mm.

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

10–12, ovate to lanceolate, 6–9 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 10–16(–21) ascending to spreading, spatulate to linear, seldom foliaceous bractlets or bracts 10–20(–40) mm, margins usually hispid-ciliate, abaxial faces ± hispidulous.

borne singly or in 2s or 3s.

borne singly or in 2s or 3s or in open, corymbiform arrays, erect.

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.

purplish, brown, olive, or stramineous, ± flattened, obovate to cuneate, outer 6–10 mm, inner 8–12 mm, margins (sometime ± winged) proximally antrorsely, distally retrorsely barbed, apices ± truncate, faces obscurely 1-nerved, sometimes tuberculate, glabrous or sparsely strigillose;

pappi of 2 erect to divergent, retrorsely barbed awns 3–4(–7) mm.

= 48.

= 24, 48.