Flora of North America species comparison

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

blades ± elliptic to ovate or lanceolate, 40–80(–150+) × 15–40(–60+) mm, sometimes laciniately 1-pinnatisect with 1–4+ lobes near bases, bases cuneate, margins entire or dentate to serrate, usually ciliate, apices acute to acuminate, faces glabrous or hirtellous.

petioles 10–20 mm;

blades either oblanceolate to linear, 5–15+ × 1–2+ mm, or rounded-deltate overall, 10–25(–60+) × 15–25+ mm, (1–)2–3-pinnatisect, ultimate lobes oblanceolate to spatulate or linear, 5–15+ × 0.5–5 mm, bases ± cuneate, ultimate margins entire, sometimes ciliolate, apices obtuse to acute, faces glabrous.

10–40(–80) mm.

10–20(–90) mm.

campanulate to hemispheric or broader, (4–)5–7(–12) × (3–)6–12(–15+) mm.

± campanulate to cylindric, 2–3(–8) × 2(–3)[–4] mm.

usually 0, sometimes 1–5;

laminae orange yellowish, 4–8 mm.

0 or 1(–3+);

laminae whitish, 1–1.5(–3+) mm.

(5–)20–60(–150+);

corollas pale yellow to orange, (2–)3–4 mm (gradually ampliate, anthers usually pale).

(3–)5–9;

corollas whitish to yellowish, 2–2.5 mm.

(6–)7–8(–13), elliptic-ovate to lance-ovate, (4–)6–9(–12) mm.

(3–)5, oblong to lanceolate orlinear, (2–)3–8 mm.

of (2–)6–7(–10) ± spreading, oblanceolate or lanceolate to linear, ± foliaceous bractlets or bracts 7–35(–60) mm, margins (entire or serrate) sometimes sparsely ciliate, abaxial faces hispidulous near bases, distally glabrous.

of (1–)3–4 appressed to spreading, spatulate to linear bractlets or bracts 3–10(–25+) mm (sometimes foliaceous: pinnate, lobes 3–5+, linear), margins ciliolate, abaxial faces usually glabrous, sometimes sparsely hispidulous.

borne singly or in 2s or 3s.

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

blackish to purplish or brown, ± flattened, sometimes weakly 3(–4)-angled, usually cuneate to linear, outer (3–)6–7(–10) mm, inner (4–)6–9(–11) mm, margins proximally antrorsely to patently, distally retrorsely, barbed, apices ± truncate to concave, faces ± 1-nerved, usually smooth, seldom notably tuberculate, glabrous or sparsely strigillose;

pappi 0, or of (1–)3–3(–4+) ± erect to spreading, retrorsely barbed awns (0.2–)2–3(–6) mm.

outer red-brown (sometimes with lighter blotches), ± equally 4-angled, linear-fusiform, 5–6(–8) mm, margins not ciliate, apices ± attenuate, faces 2-grooved, usually glabrous;

inner similar, 10–14 mm;

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

= 48.