Flora of North America species comparison

decumbent to erect, glabrous, hirsute, or puberulent.

erect, glabrous proximally, distally glabrate, scabrellous, or strigillose (glaucous).

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.

cauline; opposite (proximal) or alternate;

petioles (1–)2–5 cm;

blades (light to dark green, 3-nerved distal to bases) lanceolate to lance-ovate, 10–32 × (1.2–)4–9 cm, bases cuneate, margins usually coarsely to shallowly serrate, rarely subentire (flat), abaxial faces puberulent to tomentulose, gland-dotted.

9–50 cm.

0.3–10 cm.

hemispheric, 10–22 mm diam.

11–20;

laminae 12–23 mm.

14–20;

laminae 23–40 mm.

30+;

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

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

100+;

corollas 5–6 mm, lobes yellow;

anthers dark brown to black, appendages yellow.

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

25–30 (loose, spreading), lance-linear, 10–14 × 1.5–2.5 mm (subequal), (margins ± ciliate) apices attenuate, abaxial faces glabrous or puberulent, not gland-dotted.

1–3.

3–15+.

2.5–3.2 mm, glabrous or sparsely hairy;

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

3–4 mm, glabrate;

pappi of 2 aristate scales 1.9–2.5 mm.

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

7–8 mm, entire or 3-toothed (apices acuminate, ± hairy).

-lucres broadly hemispheric, 15–25 mm diam.

= 34.