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 10–30(–70) mm;

blades either ovate to lanceolate, 30–70(–120) × 12–18(–45) mm, or 1-pinnately lobed, primary lobes 3–7, ovate to lanceolate [linear], (10–)25–80+ × (5–)10–40+ mm [blades 2(–3)-pinnatisect], bases truncate to cuneate, ultimate margins serrate or entire, usually ciliate, apices acute to attenuate, faces pilosulous to sparsely hirtellous or glabrate.

10–35(–80) mm.

10–20(–90) mm.

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

turbinate to campanulate, 5–6 × (6–)7–8 mm.

usually 0, sometimes 1–5+;

laminae yellowish, 4–8 mm.

0 or (3–)5–8+;

laminae whitish to pinkish [yellowish], 2–3 or 7–15+ mm.

(5–)20–40(–60+);

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

20–40(–80+);

corollas yellowish, (2–)3–5 mm.

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

(7–)8–9(–13), lanceolate to oblanceolate, 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.

(6–)7–9(–13) ± appressed, spatulate to linear bractlets (3–)4–5 mm, margins ciliate, abaxial faces usually hispidulous to puberulent.

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, ± flat, linear to narrowly cuneate, (3–)4–5+ mm, margins antrorsely hispidulous, apices ± truncate or somewhat attenuate, faces obscurely 2-grooved, sometimes tuberculate-hispidulous;

inner blackish, ± equally 4-angled, linear-fusiform, 7–16 mm, margins antrorsely hispidulous, apices ± attenuate, faces 2-grooved, tuberculate-hispidulous to sparsely strigillose;

pappi 0, or of 2–3(–5), erect to divergent, retrorsely barbed awns (0.5–)2–4 mm.

= 48.

= 24, 36, 48, 72.