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 3–20 mm;

blades usually rounded-deltate overall, 10–30+ × 5–20+ mm, 1–2-pinnatisect, ultimate lobes linear to filiform, 2–25 × 0.5–1(–2) mm, bases obscurely cuneate, ultimate margins minutely, if at all, ciliate, apices obtuse to acute (sometimes apiculate), faces glabrous or sparsely hirtellous.

10–35(–80) mm.

10–50(–100) mm.

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

± cylindric, 3.5–5 × (1–)2–3 mm.

usually 0, sometimes 1–5+;

laminae yellowish, 4–8 mm.

0 or 1–3+;

laminae yellowish, 1–4 mm.

(5–)20–40(–60+);

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

5–9(–13);

corollas yellowish, 1–1.5 mm.

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

5–6, lance-elliptic to lanceolate, 2.5–4(–5) 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 (1–)3(–5), appressed to spreading, linear bractlets (1–)3(–4) mm, margins minutely, if at all, ciliate, abaxial faces usually glabrous, sometimes sparsely hispidulous.

borne singly or in 2s or 3s.

usually borne singly.

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.

red-brown to blackish (sometimes with lighter blotches), outer ± obcompressed and linear, 3–5 mm, margins not ciliate, apices ± truncate, faces 2-grooved, usually glabrous;

inner similar, ± equally 4-angled, linear-fusiform, (6–)7–12 mm, apices ± attenuate;

pappi 0, or of 2(–3) spreading to divergent, retrorsely barbed awns 1–2 mm.

= 48.