Flora of North America species comparison

erect, glabrous.

decumbent to erect, glabrous, hirsute, or puberulent.

cauline; opposite (proximal or all) or alternate (distal);

petioles (1–)2–5 cm;

blades (green, 3-nerved distal to bases) lanceolate to ovate, 7–21 × 4–10 cm, bases rounded to cuneate (often shortly decurrent onto petioles), margins usually serrate (moderately to notably in larger leaves), abaxial faces ± scabro-hispidulous, relatively sparsely gland-dotted.

mostly cauline; mostly alternate;

petioles 1–7 cm;

blades deltate-ovate, lance-ovate, or ovate, 2.5–14 × 1.8–13 cm, bases cordate to truncate or broadly cuneate, margins subentire to serrate, abaxial faces glabrate to hispid, not gland-dotted.

2–12 cm (not gland-dotted).

9–50 cm.

hemispheric, 10–22 mm diam.

8–12;

laminae 20–25 mm.

11–20;

laminae 12–23 mm.

40+;

corollas 6.5–7.2 mm, lobes yellow;

anthers usually dark brown to black (rarely reddish brown), appendages dark or reddish brown.

30+;

corollas 4.5–5 mm, lobes usually reddish, sometimes yellow;

anthers dark, appendages dark (style branches usually reddish, rarely yellow).

20–25 (often reflexed), lance-linear to lanceolate, 11–16 × 2–3 mm (sometimes leaflike, longest surpassing discs by 1/2+ their lengths), (margins ciliate) apices attenuate, abaxial faces strigillose to glabrate, not gland-dotted.

20–30, lanceolate, 8–17 × 1–3 mm, apices acute to long-attenuate, abaxial faces glabrous or ± hispid, not gland-dotted.

3–6(–10).

1–3.

3.5–5 mm;

pappi of 2 aristate scales 3–4 mm.

2.5–3.2 mm, glabrous or sparsely hairy;

pappi of 2 lanceolate or lance-linear scales 1.2–2.5 mm.

-lucres hemispheric, 12–25 mm diam.

8–10 mm, 3-toothed.

7.5–8 mm, apices 3-toothed (middle teeth acuminate, usually glabrous or hispid, sometimes ± villous or bearded).

= 34, 68.