Flora of North America species comparison

decumbent to erect, glabrous, hirsute, or puberulent.

erect, slightly hairy.

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.

basal and cauline; mostly opposite;

petioles 1–5 cm;

blades lanceolate to lance-ovate, 10–25 × 2–8 cm, bases cuneate, margins serrulate to serrate, abaxial faces sparsely hispid, gland-dotted.

9–50 cm.

7–14 cm.

hemispheric, 10–22 mm diam.

hemispheric, 14–18 mm diam.

11–20;

laminae 12–23 mm.

15–20;

laminae 25–37 mm.

30+;

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

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

75+;

corollas 7–7.5 mm, lobes reddish (at least at tips);

anthers dark, appendages dark to yellowish (style branches yellow).

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

25–35, oblong-lanceolate, 7–12 × 3–3.5 mm (strongly unequal), apices acuminate, abaxial faces usually puberulent, gland-dotted.

1–3.

3–6.

2.5–3.2 mm, glabrous or sparsely hairy;

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

(seldom formed) 4–5 mm, glabrate;

pappi of 2 aristate scales 2.5–3.5 mm.

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

9–10 mm, entire or 3-toothed (apices reddish).

= 102.