Flora of North America species comparison

erect, usually hispid.

(usually reddish) erect, hairy.

mostly cauline; mostly alternate;

petioles 2–20 cm;

blades lance-ovate to ovate, 10–40 × 5–40 cm, bases cuneate to subcordate or cordate, margins serrate, abaxial faces usually ± hispid, sometimes gland-dotted.

cauline; mostly alternate;

petioles 0–1.2 cm (ciliate);

blades (3-nerved from bases) lanceolate to lance-ovate, 7–20 × 1.2–3.5 cm, bases cuneate, margins serrulate to subentire (± flat), abaxial faces scabrous or ± hirsute, sometimes gland-dotted.

2–20 cm.

8–12 mm.

hemispheric or broader, 15–40(–200+) mm diam.

hemispheric, 10–24 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

12–20;

laminae (often pale yellow) 15–25 mm (abaxial faces not gland-dotted).

150+(–1000+);

corollas 5–8 mm (throats ± bulbous at bases), lobes usually reddish, sometimes yellow;

anthers brownish to black, appendages yellow or dark (style branches yellow).

60+;

corollas 5–6 mm, lobes yellow;

anthers dark brown or black, appendages dark.

20–30(–100+), ovate to lance-ovate, 13–25 × (3–)5–8 mm, (margins usually ciliate) apices abruptly narrowed, long-acuminate, abaxial faces usually hirsute to hispid, rarely glabrate or glabrous, usually gland-dotted.

20–25 (loose or spreading), linear, 8–15 × 1.2–2 mm, (margins usually ciliate) apices acute to attenuate, abaxial faces sparsely strigose, not gland-dotted.

1–9.

1–12.

(3–)4–5(–15) mm, glabrate;

pappi of 2 lanceolate scales 2–3.5 mm plus 0–4 obtuse scales 0.5–1 mm.

3–4 mm, glabrate;

pappi of 2 aristate scales 2.4–3 mm.

9–11 mm, 3-toothed (middle teeth long-acuminate, glabrous or hispid).

7–9 mm, entire or ± 3-toothed (apices acute, hairy).

= 34.

= 34.